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[Blog Post] SAP Event Mesh - Consuming S4 events simultaneously in CAP-based applications and SAP Integration Suite[Blog Post] SAP Event Mesh - Consuming S4 events simultaneously in CAP-based applications and SAP Integration SuiteOne S/4HANA event, two consumers at once: a CAP Java application and SAP Integration Suite. Late in a long Deep Dive series and written as such — the queues, the S/4HANA connection and the Integration Suite side were all established in earlier posts, so this is the part where they meet.AyushKumar and vipul.khullar, published 2023-03-24
[Blog Post] SAP Event Mesh - Consuming S4 events simultaneously in CAP-based applications and SAP Integration Suite
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects Runnable code.
[BTP HANA Cloud Database] : How to access HANA Cloud Database & HDI Container in BTP[BTP HANA Cloud Database] : How to access HANA Cloud Database & HDI Container in BTPGetting at the database your application already deployed to, which sounds trivial until the HDI container is the only thing that has credentials for it. Guidance for the case where the account is already configured and the question is only how to look inside.showkath_naseem, published 2023-01-18
[Part - 1] Enrich CAP based Services with Behaviors using Annotations[Part - 1] Enrich CAP based Services with Behaviors using AnnotationsWalks through CDS annotations that add behaviour beyond CRUD: @readonly and @insertonly take away write, update or delete on an entity or element, each shown with the OData metadata it generates. @mandatory, @assert.unique, @assert.integrity, @assert.format and @assert.range then enforce input checks that @sap/cds runs on write, with the SQL or HANA constraint @assert.unique compiles to and the error code each rejection returns. It names @restrict and @requires but defers them, calling authorization too large a topic for this post.published 2023-01-28
[Part – 2] Enrich CAP based Services with Behaviors using Annotations[Part – 2] Enrich CAP based Services with Behaviors using AnnotationsThe second half of a two-part walkthrough of CAP's behavioral annotations, following on from access control and input validation in the first part. This post works through @cds.autoexpose, @cds.api.ignore, @cds.persistence.exists/skip, @cds.on.insert/@cds.on.update and the @odata.Type/@odata.singleton mapping overrides, all shaping how a CDS model is projected into a service, which is data modelling. Alongside these it covers @cds.query.limit for default and maximum page sizes (pagination and streaming), @odata.etag with exclusive and shared locks for optimistic concurrency (concurrency control), and @cds.search for scoping $search to chosen elements (search), each with a CDS code example.published 2023-01-29
#BTP #SAPCAP: Quirky Nuggets (N01-N02)#BTP #SAPCAP: Quirky Nuggets (N01-N02)Walks through two CAP gotchas: the on/before/after phases of custom event handlers, shown with an after handler whose edits only reach the result when the handler returns an object or array, never a primitive; and the @assert.unique annotation, which builds a database uniqueness constraint from the model. For Input validation, the catch is that once the constrained property is nested, @assert.unique must name it by its model dot path (assignment.type) rather than the flattened column data modelling compiles it to (assignment_type).published 2023-06-05
#BTP #SAPCAP: Quirky Nuggets (N03-N04)#BTP #SAPCAP: Quirky Nuggets (N03-N04)Two unrelated findings in one post, which is the format of the series: the OData operators tried against a CAP service — with a schema of deliberately awkward types to try them on — and undeploying database artifacts, which is the half people hit in anger. Numbered N03 and N04 of a run that continues either side.Ajit_K_Panda, published 2023-06-05
#BTP #SAPCAP: Quirky Nuggets (N03-N04)
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe, Runnable code.
#BTP #SAPCAP: Quirky Nuggets (N05-N06)#BTP #SAPCAP: Quirky Nuggets (N05-N06)On SAP BTP, Cloud Foundry Runtime, a one-shot PostgreSQL db-deployer app can be restarted by the platform's default port-type health check inside its 60-second timeout, re-running the deploy and duplicating data in the PostgreSQL database; setting health-check-type to process or http, via cf commands or the app's mta.yaml parameters, avoids it. In CAP, a remote service's entities are imported and consumed through cds.connect.to and queried via a projection, but its functions and actions cannot be projected: they must be redefined in the consuming service's own interface, with the handler forwarding the call to the remote proxy.published 2023-07-27
#CAP-TechBytes Input Validation#CAP-TechBytes Input ValidationThe annotations one at a time — @mandatory, @assert.unique, @assert.range including the enum form, @assert.format — each with what it produces. Ends on error handling, which is the part that decides whether any of it is usable from a UI.Thajunniza, published 2023-07-07
#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 1#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 1First of a three-part series on designing a CAP application on BTP that uses the platform's data privacy services, and this part is the vocabulary before any of it: personal data, the rights a data subject has under GDPR, and the data controller and processor distinction, worked through an order-confirmation SMS example. It names four BTP services: SAP Personal Data Manager, SAP Data Retention Manager, SAP Data Privacy Integration and SAP Audit Log service. Only the first is described, as a service running in the Cloud Foundry environment that finds data subjects across one or more applications and services, makes requests on an individual's behalf about their personal information and forwards them for handling, and notifies individuals which of their personal information is being used or sends them a copy of their record by email; the CAP-side annotations and PDM's own application features follow in Part 2 and Part 3.Ajit_K_Panda, published 2023-03-18
#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 2#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 2Walks through wiring a CAP service to SAP's Personal Data Manager (PDM) on BTP: entity, key and field-level @PersonalData annotations that mark data subjects and personal fields, the @PersonalData.IsPotentiallyPersonal / IsPotentiallySensitive distinction that drives audit logging, and the @Communication.Contact annotation PDM needs to search for a data subject. Covers the xsuaa trust arrangement and service binding that let the standalone PDM application call back into the CAP service to read and manage that data. Second of a three-part series; the annotation model it demonstrates is CAP's own mechanism for data privacy compliance, exercised against a sample 'Game Shop' application.Ajit_K_Panda, published 2023-03-18
#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 3#SAPCAP: Win Customer Trust using Data Privacy and Protection Services on BTP - Part 3Third of a three-part series, this covers the UI side of SAP's Personal Data Manager (PDM) once it is subscribed and wired to a CAP application: a Customer Service Representative searches for a data subject, views the personal data the application's annotations expose, and requests correction, deletion or export on their behalf, while an Operators Clerk processes those requests through to completion. PDM stores none of the personal data itself, only the requests and access logs, which an administrator downloads through the separate Data Transport app. It builds on the annotation model the first two parts introduce, so what it demonstrates is PDM's own delivered UI rather than anything a CAP application must build itself.Ajit_K_Panda, published 2023-03-18
2024/01最新版！Productivity Toolsを使ったCAPバックエンド開発②~HANA Cloud編~2024/01最新版！Productivity Toolsを使ったCAPバックエンド開発②~HANA Cloud編~In Japanese, and the second of a pair — database connection through to calling the API from outside, with authorisation in between. The author dates the screenshots explicitly and warns that the UI may have moved since, which is the right disclaimer for a click-through guide.takayuki_tanaka, published 2024-01-09
2024/01最新版！Productivity Toolsを使ったCAPバックエンド開発②~HANA Cloud編~
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe.
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 1/3A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 1/3The concepts before the code: what the GPT model and its API actually offer, and what the finished chat application looks like — personalities included. Written in the weeks when the ground was moving under it, and the post carries its own change log to prove it: GPT-3.5 added on 1 March, GPT-4 on 15 March, and an admission that a series planned as two posts became three.published 2023-02-22
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 1/3
cap-ui5-gpt-chat: no published releases, repository quiet for 41 months. Affects Runnable code.
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 2/3A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 2/3The backend: CAP with TypeScript, the entities holding chats and personalities, and the service that talks to the API. This is where the streamed completion and the repositories behind the handler come from, which is the part of the sample still worth lifting even though the model access has since been superseded by AI Core.published 2023-02-24
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 2/3
cap-ui5-gpt-chat: no published releases, repository quiet for 41 months. Affects Runnable code.
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3The SAPUI5 frontend of the sample, and mostly an argument for writing UI5 in TypeScript: ES imports in place of sap.ui.define, a class with real private members in place of the underscore convention, and the service types generated from the CDS model copied into the UI package, so one IChats interface types the OData object the controller reads. The second half is structure — a formatter class and a singleton LayoutManager called from the XML view through core:require, a confirmation helper taking a callback, a dialog class resolving a promise, a generic createEntity<T> on a service class — all of it to keep every controller under 100 lines. What it says about arranging a UI5 app holds whatever model sits behind the chat; the tooling around it is of its date, and the post calls UI5's TypeScript support experimental.published 2023-02-27
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3
cds2types. Affects Runnable code.
A modern workflow for SAP Cloud Integration with CAP and Azure DevOpsA modern workflow for SAP Cloud Integration with CAP and Azure DevOpsCAP used to build tooling rather than an application: the development workflow for Cloud Integration is limited to what the Integration Suite offers, so the author puts a CAP service and Azure DevOps around it. An unusual use of the framework, and the reason to read it.marcel_schork62, published 2023-06-27
A Natural Choice: SAP AIF can now expose events to Advanced Event Mesh to power your EDAA Natural Choice: SAP AIF can now expose events to Advanced Event Mesh to power your EDAAnnounces AIFAEM, a new software component of SAP Application Interface Framework that lets SAP ECC and older SAP S/4HANA backends create custom events from BOR objects and IDocs, in CloudEvents format, and publish them to SAP Integration Suite, advanced event mesh — closing the gap for backends that predate S/4HANA's own RAP-based standard events. It ships as the ABAP add-on AIFAEM731 (SAP NetWeaver 7.31, i.e. ECC) or AIFAEM800 (NetWeaver 7.55 and later), and its usage is included in an advanced event mesh subscription.KStrothmann, published 2024-07-29
Adding Custom Metrics to a CAP application using cap-js/telementry plugin and SAP Cloud LoggingAdding Custom Metrics to a CAP application using cap-js/telementry plugin and SAP Cloud LoggingWalks through adding a custom OpenTelemetry counter metric to a CAP application on top of @cap-js/telemetry's built-in database-pool metrics, incrementing and decrementing it from a service handler on CREATE and UPDATE of high-urgency incidents. Shows the resulting metric in SAP Cloud Logging's Discover and Visualize screens, building a custom visualisation from the exported metrics data.gopalanand, published 2024-06-27
An Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAIAn Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAIA dormant internal app at SAP Japan revived with AI, built to solve a problem the team actually had — colleagues who could not talk to each other. Build Apps on the front, CAP on Kyma behind it, OpenAI in the middle.javieryw, published 2024-01-31
An Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAI
LLM integration changed in @cap-js/ai 1.0.0, 2026-04-28. Affects Runnable code.
API Managed IntegrationAPI Managed IntegrationSAP's reference architecture for API-managed integration, which puts the API Management capability of SAP Integration Suite in front of business applications as API proxies that intercept each call to apply security policies, transformations and governance and to collect usage metrics. SAP defines it as a pattern that complements the other integration patterns, and draws three routes behind the proxy: a managed API forwarded to its provider for simple transformations and protocol adaptations, the Graph capability exposing data from several sources as one connected API, and Cloud Integration for mediation beyond API Management's scope, with the edge integration cell runtime for managing APIs in a customer-managed Kubernetes environment. SAP states that it delivers no predefined scenarios for this pattern, so the proxies and policies are the customer's or partner's to build.published 2024-08-01
Application to Application IntegrationApplication to Application IntegrationSAP's reference architecture for application-to-application integration, where messages carrying transactional data such as sales orders pass between business applications in near real time and each one triggers the next process step. When the sender's and receiver's APIs do not match, Cloud Integration in SAP Integration Suite sits between them to determine receivers, filter, map structures and convert protocols, which is the ground of integration flows; SAP Connectivity service, Cloud Connector and SAP Destination service reach on-premise receivers, and the edge integration cell runtime keeps processing inside a customer-managed landscape where compliance requires it. Direct exchange without middleware is allowed when the two APIs already align, asynchronous communication is the default the page states, and it is drawn at the level of the pattern, following SAP's Integration Solution Advisory Methodology, without designing any one flow.published 2024-08-01
Authorization Management Service in SAP Cloud Identity ServiceAuthorization Management Service in SAP Cloud Identity ServiceStates the direction of travel plainly — BTP moving authorization management from XSUAA to AMS inside SAP Cloud Identity Service — and then explains what a policy is, which is the unit that replaces a scope. Split between authorization for Cloud Identity itself and for custom business applications, and it is the concept post the CAP Java write-up refers back to.kevin_li, published 2024-10-17
Automate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsAutomate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsA process that drafts its own text: ChatGPT writing job postings, SAP Build Process Automation carrying them through approval, and CAP in between. Presented as a generic pattern the author expects to be adapted rather than copied.shivamshukla12, published 2023-08-10
Avoid design time CAP server restarts when maintaining local data filesAvoid design time CAP server restarts when maintaining local data filescds watch restarting on every file change is the feature; this is the case where it is not. Editing a CSV seed file mid-edit restarts the server against half-finished data, and the post is about suppressing that without giving up the watch loop. A small friction most people work around silently rather than fix.published 2024-04-26
Avoid design time CAP server restarts when maintaining local data files
Local development changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
BTP CAP : Custom plugin to separate generic change log capture logicBTP CAP : Custom plugin to separate generic change log capture logicWalks through building a custom [CAP](ecosystem:cap) plugin that centralises change-log capture: on cds.once('served') it collects entities annotated @audit, then hooks srv.before('UPDATE') to read the existing record, diff it field by field against the incoming payload, and record old/new values with the user and timestamp. It also documents a cds build failure packaging the plugin's own directory into gen/srv for MTA deployment, fixed by adding it as a copyfiles build-parameter step in mta.yaml.sreehari_vpillai, published 2023-05-10
Building an Analytical List Page with CAP OData V4Building an Analytical List Page with CAP OData V4The annotations a CAP OData V4 service needs before an Analytical List Page will render — the write-up behind the cap-alp sample indexed here. Candid about its provenance: the author credits a GitHub repository she found the approach in, and notes that the repository is no longer available, which is the whole argument for indexing the reasoning rather than only linking the code.published 2023-06-12
Building an Analytical List Page with CAP OData V4
cap-alp: no published releases, repository quiet for 24 months. Affects A recipe, Runnable code.
Business to Business IntegrationBusiness to Business IntegrationSAP's reference architecture for business-to-business integration, the exchange of business documents with customers, suppliers and other trading partners over agreed standards such as EDIFACT, ANSI X.12 and IDoc and protocols such as AS2. Its design-time steps are Cloud Integration in SAP Integration Suite, the predefined content of SAP Business Accelerator Hub, and Integration Advisor, which defines message implementation and mapping guidelines and generates runtime artifacts from them; Trading Partner Management then turns partner profiles into agreements pushed to the Partner Directory, and generic integration flows on Cloud Integration read those agreements at runtime to exchange messages with each partner. The alternatives it names are API-based exchange where an industry has standardised its APIs, and SAP Business Network with the managed gateway for spend management in place of connecting partners one by one.published 2024-08-01
Calling bound / unbound CAP actions from Fiori elements application.Calling bound / unbound CAP actions from Fiori elements application.invokeAction from the Fiori elements Edit flow API, with the difference between bound and unbound actions spelled out first because the call shape differs. Under three thousand characters and it answers exactly one question.vidhyasagarmule, published 2024-09-07
CAP - Dynamically hide UI facets in Fiori ElementsCAP - Dynamically hide UI facets in Fiori ElementsFacets hidden at runtime rather than at design time, which needs two things at once: UI.Hidden on the annotation side and a virtual element on the CDS side to decide it. Both are linked from the post, and it is barely two pages.AjayRathore, published 2023-12-08
CAP - Dynamically hide UI facets in Fiori Elements
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe.
CAP for nodejs安全的暴露接口练习CAP for nodejs安全的暴露接口练习Starting from the risk-management sample, the walkthrough adds an open ExternalAPI service beside the existing RiskService, then moves every security annotation into a separate service-auth.cds file: @requires: authenticated-user on one entity, role-scoped @restrict grants for RiskViewer and RiskManager on another. It tests the unprotected action locally with cds watch, calling it from Postman with the session cookie read out of SAP Business Application Studio's preview tab. It then deploys to BTP and reads Risks with a client-credentials OAuth token fetched from a service key of the cpapp-auth instance, after changing that entity's READ grant from RiskViewer to authenticated-user, which the post, citing capire's CDS-based Authorization page, describes as a grant for a technical user integrating systems rather than for access from a front end.ArthurYang, published 2024-12-10
CAP full-stack testing with BDD flavourCAP full-stack testing with BDD flavourIntroduces Behavior-Driven Development for CAP applications: specifications written in Gherkin against a running app, validated by Cucumber, using cds-cucumber's ready-made step definitions for SAP Fiori elements and OData screens. The library handles service lifecycle — starting the app, assigning a port, driving the browser and authenticating a named user — and its OData steps know the service's entities and fields from the CDS model itself, so a scenario can open a list report, search it and assert row counts without hand-written glue code.published 2023-10-10
CAP PostgreSql setup local debugging using Docker - Part 2CAP PostgreSql setup local debugging using Docker - Part 2PostgreSQL in a container so the local loop matches the deployed one — the thing SQLite quietly stops you doing. Short, and it assumes the project from part one already runs.ramonlee5, published 2023-11-22
CAP PostgreSql setup local debugging using Docker - Part 2
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe.
CAP Service to Fetch + Create Sales Order in S4 HANA Public CloudCAP Service to Fetch + Create Sales Order in S4 HANA Public CloudA CAP Node.js walkthrough imports SAP S/4HANA Cloud's Sales Order OData API with cds import, adds csrf handling to the generated service definition, and forwards a custom REST action's reads and writes to the remote proxy through cds.connect.to, the pattern Service integration covers. The mta.yaml binds the SAP S/4HANA Cloud extensibility service and a SAP Destination service instance so the S/4HANA Public Cloud system's address and credentials stay outside the application, per Destinations.Mujeeb, published 2023-05-30
CAP Typescript + Fiori Typescript + live reload Initial app setupCAP Typescript + Fiori Typescript + live reload Initial app setupA full-stack TypeScript starting point recorded as it was arrived at — the terminal commands and the configuration files, in order, for the CAP side, the conversion to TypeScript, and then the Fiori side. The author is explicit that it takes a while to go through, which is the honest framing for a setup that has this many steps.Christophe_SW, published 2023-06-18
CAP Typescript + Fiori Typescript + live reload Initial app setup
TypeScript patterns changed in @cap-js/cds-typer 0.5.0, 2023-07-25. Affects Runnable code.
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1Actions on their own, at length — where an action can be placed, what the annotation looks like for each position, and what changes between the List Report and the Object Page. Part one of two.Ajit_K_Panda, published 2023-12-31
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2The second half of the actions pair, published the same day. Between them they cover more ground on this one annotation than the documentation does in one place.Ajit_K_Panda, published 2023-12-31
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
CAP with Fiori Elements: Configure Multiple Views on List Report TablesCAP with Fiori Elements: Configure Multiple Views on List Report TablesSeveral tabs over one entity, each with its own filter — the multiple-views annotation, which is one of the few Fiori elements features that changes the shape of the page rather than its content.Ajit_K_Panda, published 2023-12-25
CAP with Fiori Elements: Configure Multiple Views on List Report Tables
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
CAP with PostgreSQL DB alternate to HANA Cloud DB - Part 1CAP with PostgreSQL DB alternate to HANA Cloud DB - Part 1Bootstrapping a CAP project on PostgreSQL, framed as a choice that depends on the client rather than on the technology. Short, and part two is where it gets debuggable.ramonlee5, published 2023-10-10
CAP-JAVA implementation for Authorization Management Service (AMS)CAP-JAVA implementation for Authorization Management Service (AMS)Short and deliberately narrow: the author defers the concepts to kevin_li's post and writes only the CAP Java part — the development flow, designing the authorization model, and assigning and checking a policy. Read the other one first; this is the half that touches the code.Harvey_Yao, published 2024-12-27
CAP, CDS, CDL, CSN and jq - finding associationsCAP, CDS, CDL, CSN and jq - finding associationsHow associations are actually represented once CDL is compiled into CSN, worked out by parsing the machine-readable form with jq. Useful less as a recipe than as a way in: anything that wants to reason about a CDS model without the compiler has to read CSN, and this is what that looks like from the outside.published 2024-04-16
CAP, CORS and custom headersCAP, CORS and custom headersWhat CAP itself does about CORS, and where it stops. The starting point is a colleague's request and a deliberate constraint: @sap/approuter has full CORS support, but the author wanted to know what the CAP server offers on its own and how to extend it. Ends up covering preflight requests and custom servers, which is the mechanism a frontend hosted outside BTP actually runs into.published 2024-04-11
CAP: GraphQL as new protocolCAP: GraphQL as new protocolWritten days after @cap-js/graphql appeared, by somebody who went looking for it — an introduction to GraphQL alongside what the adapter actually does to a CAP service. The first outside account of the capability, and still one of very few.jhodel18, published 2023-03-18
CAP: GraphQL as new protocol
@cap-js/graphql has been through 11 major lines since this was published, most recently 0.12 (2025-05), 0.13 (2025-07), 0.14 (2025-10). Affects Runnable code.
CAPVAL: A project is bornCAPVAL: A project is bornThis second CAPVAL post announces CAPVAL version 2.0, made compatible with CAP v8 after breaking changes there, with the fix shown as a custom cds.middlewares.after error handler. It restates the plugin's @validation.message annotation alongside standard annotations such as @mandatory as the input validation mechanic the project builds on, and the release otherwise adds automated tests and release-automation GitHub Actions rather than new annotations.published 2024-08-26
cds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async Launchpadcds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async LaunchpadThe maintainer on a set of changes rather than on the plugin's original purpose, which is indexing every SAPUI5 project in a workspace into one sandbox launchpad so all of them can be tested together. What moved: it became a CAP plugin, gained UI5 Tooling support, and moved to the async launchpad — each framed as keeping pace with where SAPUI5 itself is going rather than as a feature.published 2023-12-11
CDS-TS-Dispatcher: Simplifying SAP CAP TypeScript DevelopmentCDS-TS-Dispatcher: Simplifying SAP CAP TypeScript DevelopmentThe first of a pair introducing the author's own libraries, and it states what it is reacting to: CAP derives OData services from a CDS model, but the communication between business logic, service and persistence layers is left to you, and the earlier attempt at the service-layer half, cds-routing-handler, appeared unmaintained against newer CAP. The dispatcher is the answer offered for that layer.published 2023-11-13
CDS-TS-Dispatcher: Simplifying SAP CAP TypeScript Development
@dxfrontier/cds-ts-dispatcher has been through 6 major lines since this was published, most recently 4 (2025-01), 5 (2025-07), 6 (2026-07). Affects Runnable code.
CDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepositoryCDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepositoryThe persistence half of the same pair, three days later: a BaseRepository putting entity access behind a typed repository rather than CQN written inline in a handler. Shares its opening argument with the dispatcher post — the layer between business logic and persistence is the part CAP leaves open — and the two are designed to be used together.published 2023-11-16
CDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepository
@dxfrontier/cds-ts-repository has been through 9 major lines since this was published, most recently 5 (2024-12), 6 (2025-07), 7 (2026-07). Affects Runnable code.
Configure an SAP CAP Application to Connect to an SAP HANA Cloud Database in Another Global Account or SubaccountConfigure an SAP CAP Application to Connect to an SAP HANA Cloud Database in Another Global Account or SubaccountThe case the tooling does not cover: the database is in a different global account, so there is no HDI container to bind and cds deploy cannot do its usual job. Written for exactly that, and it says so in the subtitle — without HDI.JhoelAnthonyRamosRomeroPE, published 2024-10-08
Connect Business Processes with SAP Master Data IntegrationConnect Business Processes with SAP Master Data IntegrationSAP's reference architecture for keeping master data such as materials, business partners and cost centres consistent across applications with SAP Master Data Integration, a central hub that stores every change in an event log and distributes it to the solutions that consume it. Cloud Integration in SAP Integration Suite carries what the hub does not reach, SAP solutions it does not yet support and third-party or on-premise systems, through an SAP Master Data Integration adapter, which is where the design meets integration flows; newer SAP S/4HANA releases connect to the hub without it. Consolidation, data quality and central governance are outside the architecture and left to SAP Master Data Governance, and SAP Master Data Integration itself has no entry in the atlas yet.published 2024-08-01
Connecting On Premise Mail Destination and Sending Email Using SAP Cloud SDK JavaScript Version 3 on SAP CAPConnecting On Premise Mail Destination and Sending Email Using SAP Cloud SDK JavaScript Version 3 on SAP CAPMail from CAP through a company's own SMTP server rather than a hosted one, which is the case the existing answers did not cover — the author names them and says why each failed here: one needed an SMTP provider like Mailtrap, another solved it in Java. What is left is the connectivity: an on-premise mail destination reached from Node, and a hybrid profile to test it against.codebrokerad, published 2023-02-14
Connecting On Premise Mail Destination and Sending Email Using SAP Cloud SDK JavaScript Version 3 on SAP CAP
Destinations changed in @sap-cloud-sdk/connectivity 4.0.0, 2025-03-04. Affects Runnable code.
Consume SAP Document Management using @cap-js/sdm pluginConsume SAP Document Management using @cap-js/sdm pluginStoring attachments in a SAP Document Management repository from a CAP application, using the official plugin. The point the post makes about the plugin is that it brings its own UI: a user attaches any number of documents and one Save writes them all to the repository, so the application does not build an upload surface of its own.published 2024-08-26
Consuming SAP Build API's made easy with SAP Cloud SDK in your CAP applicationConsuming SAP Build API's made easy with SAP Cloud SDK in your CAP applicationReaching into SBPA from CAP the other way round — reading its tasks and workflows rather than starting them. The author starts from the plain Axios version and says what it costs: the connection and the authentication are the work, not the call. Cloud SDK is used to generate a typed client from the OpenAPI document and then to resolve the connection through either a service binding or a destination, shown for client credentials and for user token exchange.maheshpalavalli, published 2023-02-08
Consuming SAP Build API's made easy with SAP Cloud SDK in your CAP application
Workflow integration has changed twice since this was published, most recently in @cap-js/n8n 0.0.1, 2026-08-27. Affects Runnable code.
Create Fiori List Report with object page using CAPM(node.js) ServiceCreate Fiori List Report with object page using CAPM(node.js) ServiceThe short version of the generated-app walkthrough — an existing CAPM Node.js service, and the List Report with Object Page on top of it. Under three thousand characters.Md_sanaullah, published 2023-09-06
Create your first CAP pluginCreate your first CAP pluginA step-by-step guide to the cds-plugin.js extension point: scaffold a package, add an index.cds for shared model artifacts, and test it locally against a throwaway CAP project before publishing to npm, with a separate section on building the same plugin in TypeScript and compiling it with tsc. Points to the author's own cds-plugin-handlers and ui5-cap-serverside-rendering-plugin as worked examples.published 2024-12-09
Creating a meal generator application with SAP Build, Cloud Application Programming and openAICreating a meal generator application with SAP Build, Cloud Application Programming and openAIIngredients in, meal suggestions out, assembled from BTP services plus OpenAI and Google APIs. A small application built for the pleasure of it, and useful here as the plainest example of CAP holding the middle of a generative flow.former_member793421, published 2023-07-17
Deploy and Run the Incident Management Application in the SAP BTP, Kyma Runtime with a Mock ServerDeploy and Run the Incident Management Application in the SAP BTP, Kyma Runtime with a Mock ServerBuilds the Incident Management CAP service and its HTML5 UI deployer as container images with the pack CLI's Cloud Native Buildpacks, then deploys both to SAP BTP, Kyma runtime with a Helm chart, wiring in the mock-server destination and productive cds build --production output set up in the prerequisite tutorials. Marked out of maintenance in favour of the newer "Develop a Side-by-Side CAP-Based Extension Application" mission in SAP Discovery Center, but the build-and-deploy mechanics it walks through — buildpacks, image tags, a Helm chart — are what deployment still covers for Kyma.published 2024-12-06
Deploy and Run the Incident Management Application in the SAP BTP, Kyma Runtime with a Mock Server
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe.
Develop and deploy a HTML (Angular/Vue/React) app on SAP BTP access S/4 OP, Part IIIDevelop and deploy a HTML (Angular/Vue/React) app on SAP BTP access S/4 OP, Part IIIThird part of a series on an Angular front end over CAP against an on-premise S/4HANA system: after an OData V4 service is exposed from S/4 OP, a CAP (Node.js) project imports its metadata with cds import, wires it as an external service with cds.connect.to, and resolves the on-premise tenant through a named destination set under the service's cds configuration in package.json. The HTML app itself is built as shown in an earlier part of the series and is only referenced here.Hongjun_Qian, published 2024-03-11
Develop CAP Project with Lazyvim in DockerDevelop CAP Project with Lazyvim in DockerA Docker image running Lazyvim with language server support for CDS, TypeScript and JSON, so a CAP project can be developed with an editing experience comparable to VS Code without leaving the keyboard. Narrow by intent, and the useful general point underneath it is that CAP's editor support reaches anything that speaks LSP.published 2024-03-28
Developing SAP Fiori Element application by using SAP Cloud Application Programming ModelDeveloping SAP Fiori Element application by using SAP Cloud Application Programming ModelThe long version, and it starts by naming the floorplans — List Report, Worklist, Object Page, Overview Page, Analytical List Page — which is the decision most walkthroughs skip. Then one of them, built out against a CAP service.shobhit, published 2023-08-07
Developing SAP Fiori Element application by using SAP Cloud Application Programming Model
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Don't "let it crash", is this the new CAP guideline?Don't "let it crash", is this the new CAP guideline?Dinu traces a change in error handling in CAP's Node.js runtime: @sap/cds@8.2.0 adds a cds.server.shutdown_on_uncaught_errors config flag, defaulting to true, but invoking an operation with an undefined variable no longer takes the server down, with or without the flag, where the same code crashed it on cds@6 and cds@7, and the author notes the old behaviour was already missing in cds@8.1. It still crashes with features.odata_new_adapter turned off to use the old OData parser, so it is the new OData adapter, like the REST adapter before it, that answers an uncaught error with a 500 instead of taking the process down.Dinu, published 2024-09-06
Edge Integration Cell : Design, deploy and manage APIsEdge Integration Cell : Design, deploy and manage APIsWalks through creating an API artifact in API Management on the customer-managed Edge Integration Cell runtime, including the option to generate the artifact by importing an OpenAPI specification rather than from a URL or by hand. It then attaches an Authentication policy and a Quota step capped at four calls per minute, deploys, and shows both the resulting 401 and the quota-breach error in the Monitor logs. The author frames it as the first of a series on Edge Integration Cell's policies.published 2023-11-15
Elevating Data Privacy in SAP CAP based GenAI Applications with CAP LLM PluginElevating Data Privacy in SAP CAP based GenAI Applications with CAP LLM PluginThe question underneath the enthusiasm: what leaves your landscape when a prompt goes to a model. The plugin's answer is to anonymise the sensitive fields through HANA before the prompt is sent, and this is the post that explains why that is the design rather than an option.AkashAmarendra, published 2024-02-02
Empowering Your Data Analytics with GPT-3 and SAP CAP IntegrationEmpowering Your Data Analytics with GPT-3 and SAP CAP IntegrationFree text in, SQL out, answer back in a sentence — the model writes the query, CAP runs it, and the model turns the rows into prose. Written in the GPT-3 window, so the model access has dated, but the three-step shape has not, and it is a different bet from retrieval: nothing is embedded, the schema is the context.Former Member, published 2023-03-10
Enabling Authorization Policies in SAP Cloud Identity Services - IAS with AMS/CAPEnabling Authorization Policies in SAP Cloud Identity Services - IAS with AMS/CAPAuthorization policies defined in Identity Authentication and consumed by a CAP application through AMS — the configuration half of the move away from XSUAA scopes, from the identity service's side rather than the application's.Yogananda, published 2024-12-27
Enabling Authorization Policies in SAP Cloud Identity Services - IAS with AMS/CAP
Authorization changed in CAP Java 3.7.1, 2025-01-30. Affects A recipe.
Event Driven Architecture with Event Mesh – Part-2Event Driven Architecture with Event Mesh – Part-2Part 1 published a message and stopped there; this closes the loop by giving it somewhere to go. A REST API built in Integration Suite is registered as a webhook on the Event Mesh queue, and the chain is run end to end — CAP to Event Mesh to Integration Suite to Twilio — so the consumer side and the webhook configuration are what this adds.Avinash_Vaidya, published 2023-01-30
Event Driven Architecture with Event Mesh – Part-2
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects A recipe, Runnable code.
Event-Driven Multi-Tenant Architecture on SAP BTP with CAP and SAP Event MeshEvent-Driven Multi-Tenant Architecture on SAP BTP with CAP and SAP Event MeshThe two topics that are usually written about separately, taken together — because a shared broker is where tenant isolation stops being automatic. It starts from why microservices are decoupled at all, places Event Mesh among the four broker services BTP offers, and then works through what changes when the publisher and the consumer are multitenant.ale_biagi, published 2024-12-19
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-tsExploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-tsPart one of two: a bookshop project built in TypeScript from cds init, with cds-typer added as a development dependency and the surrounding tools — cds-ts and node-ts — put in place so the project runs locally. A setup walkthrough rather than an argument about typing, and it stops at the point where the application works on a laptop; deployment is part two.satya-dev, published 2024-07-08
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts
@cap-js/cds-typer has been through 18 major lines since this was published, most recently 0.39 (2026-05), 0.40 (2026-06), 0.41 (2026-08). Affects A recipe, Runnable code.
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2Part two takes the TypeScript project from part one to Cloud Foundry: cds add mta, then the parts of the generated descriptor the author singles out as needing attention for a TypeScript build rather than a JavaScript one. The pair together is the whole path — typed model locally, then deployed — which is where a typing walkthrough usually stops short.satya-dev, published 2024-07-19
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2
@cap-js/cds-typer has been through 17 major lines since this was published, most recently 0.39 (2026-05), 0.40 (2026-06), 0.41 (2026-08). Affects Runnable code.
Exposing Calculation View with Dynamic Client via OData APIExposing Calculation View with Dynamic Client via OData APIGetting a HANA Cloud calculation view — built in Business Application Studio and deployed to an HDI container, which is the recommended way to build native HANA artifacts — out through an OData API. The gap it fills is the one between HANA-native development and a service a client can call, which CAP does not cover for artifacts it did not generate.published 2023-10-04
Extend SAP Cloud Application Programming Model(CAP) Validations with the CAPVAL PluginExtend SAP Cloud Application Programming Model(CAP) Validations with the CAPVAL PluginThe complaint first: the built-in annotations are good for data integrity and poor at telling the user what went wrong, and there is no way to reuse a rule. capval, the plugin the post announces, adds @validation.message alongside the standard annotations rather than replacing them, and @validation.handler for a check written as a class. Published in January 2024, before the 1.2.0 line the README now pairs with @sap/cds 8.0.0 and above; the two annotations it shows are the two the README still documents.published 2024-01-09
Extend Upload Set to Fiori Elements and utilize Document Management ServiceExtend Upload Set to Fiori Elements and utilize Document Management ServiceWritten two months before there was an official plugin, and the author has left the record of that in the page: an update dated 2024-04-04 noting the CAP team released @cap-js/attachments, and another dated 2024-05-21 saying they tested it and wrote up the Object Store variant separately. The hand-built version underneath is still the answer when the plugin's storage choices do not fit.published 2024-02-25
Extend Upload Set to Fiori Elements and utilize Document Management Service
Attachments has changed 3 times since this was published, most recently in @cap-js/sdm 1.0.0, 2024-06-26. Affects Runnable code.
Extend Upload Set with Table to Fiori Elements and utilize Object StoreExtend Upload Set with Table to Fiori Elements and utilize Object StoreThe Object Store variant of the author's earlier Document Management post, written after testing @cap-js/attachments — a sample managing text and file information together, and offered as something for people new to BTP rather than as a pattern.published 2024-05-21
Extend Upload Set with Table to Fiori Elements and utilize Object Store
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
Extensions for SAP Build Process Automation - Actions from CAP Node.js ServiceExtensions for SAP Build Process Automation - Actions from CAP Node.js ServiceThe direction of travel reversed: the CAP service is the thing being called, exposed as an Action so that a no-code process can consume it. Short by design — it is an introduction to a developer tutorial, and it says outright that the goal is to cover every step rather than to model a real use case.TJe, published 2023-01-13
Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?A question in the title and an answer in the post, with the boundary drawn carefully: this is an analytical table inside a List Report, not the Analytical List Page, and the two protocol versions do not behave the same.published 2023-04-03
Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
Fiori Elements のList Reportアプリにカスタムアクションボタンを追加し、カスタムコントローラーを用いてアイコン化するFiori Elements のList Reportアプリにカスタムアクションボタンを追加し、カスタムコントローラーを用いてアイコン化するIn Japanese. A custom action button added to a generated List Report and then given an SAPUI5 icon through a custom controller — the point where an annotation-driven app needs a piece of code, and what that costs.takayuki_tanaka, published 2024-08-02
From Application Logging to Cloud Logging: Service Innovation GuideFrom Application Logging to Cloud Logging: Service Innovation GuideSAP Cloud Logging replaces SAP Application Logging service, moving each customer from a shared multitenant stack to a dedicated, fully isolated one, and this guide sets out what changes with the move: a deployment per compliance region instead of per Cloud Foundry landscape, SAML/IDP-based authentication instead of Cloud Foundry-bound auth, retention that is configurable instead of fixed at seven days, and hourly capacity-unit pricing instead of fixed-size monthly plans. It also states the deprecation timeline for logging on BTP: SAP Application Logging closes to new or renewed CPEA contracts after 2025-07-31, while contracts signed before that date keep their entitlement until their next renewal.Hariharan-Gandhi, published 2024-11-22
From Application Logging to Cloud Logging: Service Migration GuideFrom Application Logging to Cloud Logging: Service Migration GuideA six-step guide to moving off SAP Application Logging service for SAP BTP onto SAP Cloud Logging: plan the instance layout, set up an Identity Authentication Service tenant for single sign-on to the new service, bind applications to both services in parallel so log data flows to each for comparison, then deprovision the old service once Cloud Logging holds the retained history. It covers what the logging libraries need so custom fields reach both services during the overlap: the CF Node.js library detects both bindings itself from v6.5.0, while the CF Java library has to be configured to retain each custom field at top level. It also gives the deprecation date SAP published for Application Logging under CPEA contracts, 31 July 2025.Hariharan-Gandhi, published 2024-11-22
GenAI Mail Insights - Leveraging the generative AI hub in SAP AI Core to improve customer supportGenAI Mail Insights - Leveraging the generative AI hub in SAP AI Core to improve customer supportA sample application rather than an explainer, and the author says so in the opening — enough talking, here is something that runs. Incoming support mail summarised and categorised through the generative AI hub in AI Core.martinfrick, published 2023-11-15
Generating PDF on BTP CF using CAP and PuppeteerGenerating PDF on BTP CF using CAP and PuppeteerA headless browser rendering the PDF, which is the answer people reach for when the document is really a web page. The Cloud Foundry part is the difficulty: Puppeteer needs a browser in the buildpack, and that is what the post is actually about.ltomazeli58, published 2024-03-28
Graph intro series, part 8: Use Graph With OData v4Graph intro series, part 8: Use Graph With OData v4Part eight of the Graph intro series works through querying SAP Graph's unified business data graph over OData v4: inspecting the $metadata EDMX document for an entity type such as SalesQuote, then shaping the response with $select and nested $expand across navigation properties, and paging a collection with $filter, $orderby, $top and $skip. It stays with the protocol mechanics against the Graph sandbox endpoint rather than any one client library.florian_moritz, published 2024-03-19
Hey ABAP Cloud please let me save my data export to Azure Storage please🥺🙏- part 4Hey ABAP Cloud please let me save my data export to Azure Storage please🥺🙏- part 4Walks through reaching Azure Blob Storage from ABAP Cloud without an intermediary Cloud Foundry app: an OAuth2 client credentials flow against Microsoft Entra ID, driven either through cl_http_destination_provider and the SAP Destination service at subaccount or Cloud Foundry-space level, or through the SAP_COM_0276 communication scenario and Communication Management. Notes that SAP marks the destination-service route deprecated for ABAP Cloud even though it alone offers management APIs and cross-tenant reuse, and closes on automating the resulting client-secret rotation with Azure Key Vault.published 2023-11-21
How to build reusable plugin components for CAP Java applicationsHow to build reusable plugin components for CAP Java applicationsA companion to Daniel Schlachter's Reusable components for CAP with cds-plugin, showing the same mechanism on CAP Java: a plugin ships as its own Maven artifact with an event handler and a CdsRuntimeConfiguration implementation, registered through the JDK's ServiceLoader rather than any CAP-specific wiring. The walkthrough builds a cds-emoji-plugin-java jar that decorates @emoji-annotated fields on read, installs it to the local Maven repository, and adds it as a runtime dependency to a cds init --add java bookshop application. It argues the plugin mechanism was not new to CAP Java, just previously undocumented.robinjayasinghe, published 2023-05-16
How to Generate and Download PDFs on the fly without persisting in CAP ApplicationHow to Generate and Download PDFs on the fly without persisting in CAP ApplicationStreaming a generated document straight to the client without writing it anywhere first — which sidesteps the retention question a stored file creates, and is the distinction worth having beside the attachments capability.HarsithKumarReddy, published 2024-06-18
How to handle “usernames”, “Global User IDs” and “external IDs” in your landscape?How to handle “usernames”, “Global User IDs” and “external IDs” in your landscape?Explains what a username, a Global User ID and a SCIM2 external ID each are and when to use them: the username is the mutable attribute a person authenticates with, the Global User ID is the correlation attribute SAP uses when the same user must be identified between the applications they are provisioned into, and the external ID is mutable, defined by the client and optional within SCIM2. Argues against deriving any of the three from personal data, because they appear in read-only log files and other traces, some applications do not allow an ID change at all, and DevOps staff with access to those logs would otherwise see personal data they are not allowed to see. Recommends generating values without personal data, in uuid format, for technical integrations such as SAML or OIDC flows and SCIM-based replication, and keeping attributes like an email or display name for logon aliases and for what a user interface shows; notes that Cloud Identity Services already generates the SCIM ID and Global User ID in uuid format for each record.1Gunnar, published 2023-09-12
How to mass upload from a spreadsheet file into an SAP Fiori app in SAP BTP ABAP Environment Part 1How to mass upload from a spreadsheet file into an SAP Fiori app in SAP BTP ABAP Environment Part 1Part 1 of a three-part series on mass-uploading records from a spreadsheet into a RAP business object in the SAP BTP ABAP environment, using the XCO XLSX module to parse an uploaded Excel file without any open-source library. It reads a named worksheet by its column-and-row coordinates into an internal table through the row-stream operation, then creates or updates records with the EML MODIFY ENTITIES statement, and reserves the Fiori elements custom-action wiring and the download/template generation for Parts 2 and 3.DebrajManna87, published 2024-08-08
How to transfer file from CAP backsideHow to transfer file from CAP backsideA PDF arriving from the front end, stored against the record with @Core.MediaType, and then sent on to an external service for parsing. Short, and the second half is the part that is not in the plugin documentation: getting the bytes back out of the model to forward them somewhere else.published 2023-09-14
How to transfer file from CAP backside
Attachments has changed 3 times since this was published, most recently in @cap-js/sdm 1.0.0, 2024-06-26. Affects Runnable code.
How we could potentially have nestjs as runtime for SAP CAPHow we could potentially have nestjs as runtime for SAP CAPA proof-of-concept that swaps @sap/cds's ApplicationService and ODataAdapter dispatch for NestJS controllers, providers and interceptors, built by the author to learn NestJS rather than to ship a runtime. It works through CAP's run-dispatch-handle loop and AsyncLocalStorage-based transaction boundaries in detail before mapping them onto NestJS dependency injection and interceptors — one community answer to the controller-service-repository layering question core TypeScript support leaves open. The author's own conclusion is that the result reimplements CAP Java in Node.js, and they do not plan to take it further.alex_myakinkii, published 2024-09-19
Hybrid testing using PostgreSQL on SAP BTP, hyperscaler optionHybrid testing using PostgreSQL on SAP BTP, hyperscaler optionA short note rather than a guide — the author says they came across the feature reading someone else's post on PostgreSQL with Kyma. Hybrid testing against a real PostgreSQL instance, which until then people assumed meant HANA.martinfrick, published 2023-08-08
Information Map – Introduction Series: Graph in SAP Integration SuiteInformation Map – Introduction Series: Graph in SAP Integration SuiteIntroduces Graph, an enhancement to API Management within SAP Integration Suite that gives developers a single API onto an organisation's business systems, modelled as one semantically connected business data graph, later renamed API Composition. Splits the work between an administrator, who enables SAP BTP destinations to the backend systems and builds the business data graph, and a developer, who explores it in the Graph Navigator tool and builds an application against the resulting Graph API.published 2024-02-21
Integrate SAP Business Technology Platform audit logs with IBM Security QRadarIntegrate SAP Business Technology Platform audit logs with IBM Security QRadarWalks through pulling entries from the SAP Audit Log service for a Cloud Foundry subaccount, via its retrieval API and a service key downloaded from the SAP Authorization and Trust Management service, into IBM Security QRadar as a Universal Cloud REST API log source. A sample audit event, a data read event under audit.data-access, drives a custom QRadar DSM mapping event ID and category, then the walkthrough deletes a user from a Kyma role collection and shows the matching audit logging entry arrive in QRadar as an offense.TusharTrivedi12, published 2024-01-03
Integrating SAP CPI with Microsoft SharePoint: Part 2- Creating an API to Upload Files to SharePointIntegrating SAP CPI with Microsoft SharePoint: Part 2- Creating an API to Upload Files to SharePointPart two of a three-part series builds a custom HTTP API in Cloud Integration: an HTTP adapter receives the upload, an exchange property derives a folder path from header values, and the SharePoint receiver adapter writes the file with OAuth2 authorization code authentication. It also covers exposing that flow through API Management and enabling streaming so larger files bypass its default 10 MB payload limit.siddhartha_routh, published 2024-11-05
Integrating SAP S/4HANA Invoicing with KSeF Using SAP Event Mesh and CAPIntegrating SAP S/4HANA Invoicing with KSeF Using SAP Event Mesh and CAPA concrete regulatory deadline rather than a demo topic: every Polish invoice has to pass through KSeF, the national e-invoice platform, and this proposes the route — S/4HANA business events onto Event Mesh, a CAP application consuming them and talking to KSeF. Short, and offered as an example to argue with.Yahor, published 2024-08-29
ISO content for common CAP typesISO content for common CAP typesThe npm package that supplies ISO-standard content — countries, languages, currencies, timezones — for CAP's common types, and how it works underneath. The author flags the length and the reason for it up front, having followed the mechanism further than the question required, which is what makes it worth reading rather than a package announcement.published 2024-03-14
ISO content for common CAP types
Seed data changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
Keep the Core Clean with Rizing CDSXKeep the Core Clean with Rizing CDSXJhodel Cailan recounts hitting a wall where neither RAP nor CAP supported more than a non-draft OData V2 service for the side-by-side extensibility scenario he wanted, and built Rizing CDSX (@rizing/cds-extension) to add draft handling over a shadow persistence entity that mirrors a remote, cds import-ed service. He walks through the @cdsx.api annotation that proxies the entity, bootstrapping the module from cds.on('bootstrap') in server.js, and testing the result through a generated Fiori elements app backed by an OData V4 draft service.published 2023-05-07
Kyma Integration with SAP Cloud Logging. Part 1: Introduction and shipping LogsKyma Integration with SAP Cloud Logging. Part 1: Introduction and shipping LogsProvisions an SAP Cloud Logging instance for SAP BTP, Kyma runtime and ships application and Istio access logs to it through Kyma's Telemetry module, using LogPipeline custom resources that name the source namespaces and the target instance's credentials. Walks through the kubectl commands and example LogPipeline configuration for both an application's own logs and Istio's access logs, then how to browse the result in OpenSearch and the built-in Four Golden Signals dashboard. First of a three-part series; traces and metrics are left to the posts that follow.gabbi, published 2024-03-25
Kyma Integration with SAP Cloud Logging. Part 2: Let's ship some tracesKyma Integration with SAP Cloud Logging. Part 2: Let's ship some tracesWalks through shipping traces from SAP BTP, Kyma runtime to SAP Cloud Logging: a Kyma TracePipeline resource pointed at the service binding's OTLP endpoint, an Istio Telemetry resource that sets the mesh-wide sampling percentage, and Cloud Logging's Trace Analytics view to filter the resulting spans by service name or request ID. For a multitenant JavaScript CAP application it instruments with @cap-js/telemetry, naming the npm packages to add, and covers Cloud Native Buildpacks and manual Istio header propagation for services outside CAP.gabbi, published 2024-04-19
Lets Deep dive into CAPM and HANA Cloud --> HANACapLets Deep dive into CAPM and HANA Cloud --> HANACapShort, and framed as what the author does day to day on BTP rather than as a tutorial: where CAPM meets HANA Cloud and which pieces have to agree.shivamshukla12, published 2023-07-16
Lets Deep dive into CAPM and HANA Cloud --> HANACap
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Making CAP Application Development Easier and Faster with the Help of Storyboard in SAP Business Application StudioMaking CAP Application Development Easier and Faster with the Help of Storyboard in SAP Business Application StudioThe Storyboard from the other side — someone who came across it while learning the high-productivity tools, rather than someone who shipped it. It follows the whole arc a CAP project takes through the tool: entities, relationships, services, sample data, a UI, roles, and external resources, each as a thing the diagram can add rather than a file you open.Aryan_Raj_Sinha, published 2023-09-20
Microsoft Sentinel for SAP goes agentlessMicrosoft Sentinel for SAP goes agentlessExplains how Microsoft Sentinel for SAP's new agentless data connector drops its Docker-based collector agent by reusing an existing SAP Cloud Connector setup together with SAP Integration Suite: on SAP NetWeaver 750 and later, a small set of RFC function modules must be reachable from Integration Suite, added as an RFC connection in the subaccount's Destinations maintenance view, with a user authorised to call them (RFC connectivity). It also covers calling the audit log API remotely, which on older releases needs SAP note 3054326 and a different integration-package configuration.published 2024-12-17
Migrating from Application Logging Service to Cloud LoggingMigrating from Application Logging Service to Cloud LoggingWalks through migrating from SAP Application Logging service for SAP BTP to SAP Cloud Logging on Cloud Foundry: sizing instances against the two services' quota and retention differences, running both bound in parallel for a week so no logs are lost, adjusting the Java and Node.js logging libraries' custom-field configuration so entries reach both, setting up SAML sign-on through IAS, and deprovisioning the old instance once Cloud Logging is confirmed to receive everything. Superseded by a newer version of this post; the quota math, custom-field steps and deprovisioning sequence here still hold.bill_keyes, published 2023-12-19
Mobile First - Making the SAP IAS-based Proof Key for Code Exchange (PKCE) great again! 🎉Mobile First - Making the SAP IAS-based Proof Key for Code Exchange (PKCE) great again! 🎉Proof Key for Code Exchange against Identity Authentication, revisited by the author after an earlier post on the same subject — the flow that lets a mobile or single-page client authenticate without a secret it cannot keep. Sample repository under SAP-samples.martinfrick, published 2023-09-21
Multitenant SaaS applications on SAP BTP using CAP - The Reloaded Version!Multitenant SaaS applications on SAP BTP using CAP - The Reloaded Version!An announcement rather than a tutorial, and it is the one that changes how the rest of the series should be read: the Cloud Foundry and Kyma code lines and their documentation were merged into a single sample, so the runtime becomes a choice inside one repository instead of a fork in the reading path.martinfrick, published 2023-08-09
Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!The Kyma counterpart to the Cloud Foundry Tried-and-True series — the same SaaS application, the same requirements, a Kubernetes runtime underneath. The two code lines were later merged, which the Reloaded post announces.martinfrick, published 2023-04-05
My CAP Projects ToolboxMy CAP Projects ToolboxA working inventory of daily CAP tooling: scaffolding a project with cds init and growing it facet by facet through cds add (TypeScript, seed data, an .http test file, a handler stub), then running it with cds watch and setting a breakpoint in a custom handler from SAP Business Application Studio's JavaScript Debug Terminal. It also walks through an @open entity that accepts properties the model never declared, and reading temporal data defined with CAP's temporal aspect, where a plain read returns only what is valid now and a custom handler is needed to retrieve every time slice.vvdries, published 2024-12-23
Nice patch SAP! Revisiting your SAP BTP security measures after AI Core vulnerability fixNice patch SAP! Revisiting your SAP BTP security measures after AI Core vulnerability fixWritten after the SAPwned disclosure in SAP AI Core, it argues SAP BTP's shared-responsibility model still requires the customer's own hardening: scope SAP BTP, Cloud Foundry Runtime and SAP BTP, Kyma runtime app access, rotate OAuth2 client-credentials secrets, and enforce MFA and Conditional Access through a corporate identity provider rather than relying on SAP's patch alone. It then explains how the SAP Audit Log service writes standardized events for most Cloud Foundry BTP services, and walks through onboarding a BTP subaccount into Microsoft Sentinel for SAP BTP to query those logs with Kusto and build detection rules that flag unexpected login countries or known-bad IPs and trigger automatic user blocks.published 2024-07-25
Open Sourcing CAP – how to learn more or get involvedOpen Sourcing CAP – how to learn more or get involvedA roundup of CAP's open-sourcing, begun at TechEd the year before, pointing to a webinar recording, a podcast episode and reCAP 2023 talks for background. Among the components it names are a feature toggle library giving Node.js CAP apps live-updatable toggles backed by Redis, a new pluggable database layer with SQLite and PostgreSQL implementations plus a generic SQL layer, and a change tracking component that builds a change history for data from CDS models.Fempel, published 2023-10-02
Part 2 – Empowering SAP BTP CAP Services through Open API Spec and Annotations for Effective Communication, Collaboration and GovernancePart 2 – Empowering SAP BTP CAP Services through Open API Spec and Annotations for Effective Communication, Collaboration and GovernanceWalks through generating an OpenAPI specification for a Node.js CAP service: installing cds-swagger-ui-express, bootstrapping it in server.js, a sample CDS data model with associations and compositions, and the YUML diagram and endpoint details the Open API Preview renders in Business Application Studio. Also shows gating the Swagger UI behind a user-defined environment variable so it is served in development and QA subaccounts but excluded from the production deployment on Cloud Foundry. Second of a three-part series; the first covers the concepts and the third goes deeper into annotations.mohit_bansal3, published 2023-05-24
Part 3 – Empowering SAP BTP CAP Services through Open API Spec and Annotations for Effective Communication, Collaboration and GovernancePart 3 – Empowering SAP BTP CAP Services through Open API Spec and Annotations for Effective Communication, Collaboration and GovernanceThe closing part of a three-post series applies OData @Capabilities annotations — TopSupported, SkipSupported, CountRestrictions, UpdateRestrictions, DeleteRestrictions, FilterRestrictions, SelectSupport, SortRestrictions, SearchRestrictions, InsertRestrictions, ReadRestrictions and NavigationRestrictions — to three sample CDS entities (Purchase Order, Business Partner, Product) and shows the generated OpenAPI document changing with each one. The point it builds toward: the spec is a direct readout of the model and its annotations, not something edited by hand afterward.mohit_bansal3, published 2023-05-24
Perform SAP Principal Propagation with Microsoft Entra ID for SAP SuccessFactors!Perform SAP Principal Propagation with Microsoft Entra ID for SAP SuccessFactors!Walks through SAP Principal Propagation for SAP SuccessFactors through SAP Integration Suite's API Management, using the OAuth2SAMLBearer flow with Microsoft Entra ID as the external identity provider. Covers the SuccessFactors-specific policy from the SAP Business Accelerator Hub, the API key and company id SuccessFactors uses in place of an OAuth2 client id, and the Entra ID app registration and key value map that exchange an Entra ID token for a SAP-authorized named user, so a consumer such as Power Automate runs under the mapped SAP user rather than a shared technical account.published 2024-11-20
Performance Trace Node.js App on BTP with DynatracePerformance Trace Node.js App on BTP with DynatraceWalks through wiring Dynatrace as a third-party APM for a Node.js app on SAP BTP, as an alternative to the platform's own internal monitoring: creating an access token and a user-provided service instance, binding it in manifest.yaml, and adding the @dynatrace/oneagent-sdk package for distributed tracing across app router, IDP and connectivity-proxy hops. An appendix covers turning on @sap/approuter's debug-level log output through the XS_APP_LOG_LEVEL environment variable.jeremy_ma_usa, published 2024-09-04
Presenting sap-cap-sdm-plugin: Effortless Integration Between CAP (Node.js) and DMSPresenting sap-cap-sdm-plugin: Effortless Integration Between CAP (Node.js) and DMSThe author's introduction of the plugin, and unusually clear about its lineage: the idea came from a post about cds.plugins whose example did nothing more than append an emoji to annotated properties, and the groundwork was an earlier library, sap-cloud-cmis-client, that this builds on. Worth reading for how a plugin gets conceived as much as for what it does with Document Management Service.published 2023-10-02
Presenting sap-cap-sdm-plugin: Effortless Integration Between CAP (Node.js) and DMS
sap-cap-sdm-plugin is archived. Its last release was 2024-03-24. Affects Runnable code.
RAG with SAP HANA Cloud Vector Engine, GenAI Hub & CAPRAG with SAP HANA Cloud Vector Engine, GenAI Hub & CAPThe end-to-end version: a CAP service exposing the vector engine and the AI hub behind a couple of endpoints, answering where a CodeJam is on a given date. It has aged in a way the author has marked in the page itself — the section on the CAP LLM plugin now carries "(Outdated)" in its own heading — so read the embedding preparation and the retrieval shape, and check the plugin part against the package.KevinR, published 2024-05-21
Recommendations for Customers on using the Direct Push-Based IntegrationRecommendations for Customers on using the Direct Push-Based IntegrationExplains SAP's direct push-based integration, where two ABAP systems (SAP BTP ABAP environment, SAP S/4HANA Cloud or SAP S/4HANA on-premise) exchange business events by calling each other over RFC connectivity, carried over CPI-C or WebSocket depending on the release, through a sender channel on one side and a matching receiver channel on the other that lists which events it wants. It recommends the mechanism only between systems in the same location or subaccount, without public exposure, and for prototyping event-driven scenarios before moving to Event Mesh or SAP Integration Suite, Advanced Event Mesh at a larger scale.sandra_thimme, published 2024-08-09
Resend HTTP messages with configured pause and fixed max iteration followed by error handlingResend HTTP messages with configured pause and fixed max iteration followed by error handlingBuilds a retry pattern for a Cloud Integration HTTP Receiver call by splitting the request-reply step into its own local sub-process, which loops on the response code — up to a fixed five iterations, each after a configured pause — and routes to an exception sub-process that attaches the message processing log through Groovy once the count is exceeded or another error occurs. The design is the author's own alternative to the platform's retry pattern and inbuilt HTTP Receiver Adapter retry option, built for cases where neither applies; SAP Event Mesh and SAP Advanced Event Mesh are named only as the queue-based alternative the author considered and set aside.Aman_V, published 2024-01-03
Reusable components for CAP with cds-pluginReusable components for CAP with cds-pluginThe post that taught the mechanism, and it teaches it by picking a requirement small enough to be absurd: every string a service returns should end in a random emoji. Working through that on the bookshop example leaves nothing to argue about except the plumbing, which is the point — what a cds-plugin is, where it hooks in, and why packaging it beats copying it into the next project. Vinícius Barrionuevo credits this post as the thing that gave him the idea for sap-cap-sdm-plugin, and it is hard to read the plugin ecosystem in this graph without it.published 2023-04-30
Run and Deploy SAP CAP (Java) with PostgreSQL on SAP BTP Cloud FoundryRun and Deploy SAP CAP (Java) with PostgreSQL on SAP BTP Cloud FoundrySuperseded by its own author: the post now opens with a notice that @sap/cds 7.0.0 brought native PostgreSQL support and that @cap-js/postgres should be used instead of the packages described below. Kept because that notice is the record of when the community adapter stopped being the answer.shanthakumar_krishnaswamy, published 2023-04-04
Run and Deploy SAP CAP (Java) with PostgreSQL on SAP BTP Cloud Foundry
cds-pg. Affects Runnable code.
Run and Deploy SAP CAP (Java) with PostgreSQL using Official Database Adapter @cap-js/postgresRun and Deploy SAP CAP (Java) with PostgreSQL using Official Database Adapter @cap-js/postgresThe post that records a handover. The author's earlier writing relied on the community projects cds-pg and cds-dbm; this one states that both were deprecated in favour of the official PostgreSQL support arriving with @sap/cds 7, and rewrites the path around @cap-js/postgres. For CAP Java it takes a different route to the initial schema.sql than the Node.js case, and it is candid that automatic schema deployment is convenient but not always what you want. Dated evidence for why two artifacts here went quiet.shanthakumar_krishnaswamy, published 2023-08-02
Run and Deploy SAP CAP (Java) with PostgreSQL using Official Database Adapter @cap-js/postgres
cds 7, line ended. Affects A recipe, Runnable code.
Run and Deploy SAP CAP (Node.js or Java) with PostgreSQL on SAP BTP Cloud FoundryRun and Deploy SAP CAP (Node.js or Java) with PostgreSQL on SAP BTP Cloud FoundryBoth runtimes in one walkthrough, and it stops on schema evolution — which is the reason to read it rather than one of the several other PostgreSQL posts here, since that is where the PostgreSQL story diverges from HANA's and the deploy stops being automatic.TiaXu, published 2023-07-12
Run and Deploy SAP CAP (Node.js or Java) with PostgreSQL on SAP BTP Cloud Foundry
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
SaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAPSaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAPTwo requirements that only appear once a SaaS application has customers: subscribing a tenant end-to-end without the provider doing it by hand, and serving every tenant from one domain instead of one host per subscriber. Kyma runtime, and the post is a summary pointing at an Expert Feature tutorial in the sample repository — it says so itself, offering a one-minute read as the entry point.martinfrick, published 2023-06-01
SaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAP
Multitenancy changed in @sap/cds 7.0.0, 2023-06-22. Affects Runnable code.
SAP Advanced Event Mesh – Manage Advance Event Mesh with API’sSAP Advanced Event Mesh – Manage Advance Event Mesh with API’sMaps the API surface of SAP Advanced Event Mesh: the REST API(v2) for administering the cloud environment and its event broker services (with legacy v0/v1 noted as discouraged), SEMP(v2) for provisioning and operating a single event broker, and the open protocols and standards it supports for consuming events, among them JMS, OpenMAMA, REST, AMQP 1.0, MQTT and WebSocket. Covers how each API authenticates — bearer tokens with scoped permissions for REST API(v2), username/password or OAuth2/certificate-based for SEMP(v2) — and where to find the connection details and reference documentation for each.Nils_Lorenz, published 2024-08-28
SAP AI Services - DOX - Gen AI with SAP CAP Plugin - Part 3SAP AI Services - DOX - Gen AI with SAP CAP Plugin - Part 3Building on Reusable components for CAP with cds-plugin by Daniel Schlachter, this part walks through a custom CAP plugin — a cds-plugin.js plus a lib_cap_dox.js helper — that authenticates against SAP's Document Information Extraction (DOX) service and calls its schema and job-status APIs to fill an entity from extracted document fields. It covers reading the service key from Cloud Foundry (cf service-key) for the OAuth token endpoint, and dynamically mapping DOX's header and line-item output onto CAP entity properties.sabarna17, published 2024-06-11
SAP BTP - KYMA - SERVICE MESHSAP BTP - KYMA - SERVICE MESHThe service mesh as it applies to side-by-side extensions — what it gives you between services once more than one of them is deployed. Definitional in places, and it quotes the official documentation for the concept before showing the use.maxi1555, published 2023-09-15
SAP BTP Audit log Enable and retrieve logsSAP BTP Audit log Enable and retrieve logsWalks through enabling and retrieving records from the SAP Audit Log service on SAP BTP's Cloud Foundry environment: the default oAuth2 service plan retains audit data for 90 days at no cost, while the premium plan adds a configurable retention period and lets an application write its own audit data. Covers the three subscription plans (premium, default for a subaccount, central for a global account) and the CLI steps to create a service instance and key, then retrieve records as JSON through the Auditlog Management Service's REST API using an OAuth2 client-credentials token in Postman.anikesh_jyotishi2, published 2024-07-12
SAP BTP Destinations in a Nutshell Part 1 - Motivation & NoAuthentication DestinationsSAP BTP Destinations in a Nutshell Part 1 - Motivation & NoAuthentication DestinationsOpens a series on SAP BTP Destinations by walking through the simplest case, a NoAuthentication destination from one CAP Node.js app to another on Cloud Foundry, shown two ways: executeHttpRequest from @sap-cloud-sdk/http-client, and a manual sequence that reads the destination service's credentials from VCAP_SERVICES, fetches an OAuth token, and requests the destination by name before calling its URL. The manual path is written deliberately verbose to show what the Cloud SDK call does behind the scenes; later parts of the series cover the other destination types.JakobFra, published 2023-05-23
SAP Build Process Automation – Use Principal Propagation in Actions sample: CAP Node.js ServiceSAP Build Process Automation – Use Principal Propagation in Actions sample: CAP Node.js ServiceThe follow-up that carries the identity through. It takes the CAP service from the Actions tutorial and puts the calling user's identity behind it — an XSUAA instance, a trust configuration, an OAuthSAMLBearerAssertion destination, and the service changed to use that instance — so a step runs on behalf of a person rather than as the process.TJe, published 2023-06-22
SAP Build Process Automation – Use Principal Propagation in Actions sample: CAP Node.js Service
Workflow integration has changed twice since this was published, most recently in @cap-js/n8n 0.0.1, 2026-08-27. Affects A recipe.
SAP CAP (Java) with Amazon Aurora PostgreSQLSAP CAP (Java) with Amazon Aurora PostgreSQLPostgreSQL, but the hyperscaler's own managed global database rather than BTP's option — Aurora, from CAP Java. One of a pair published the same day, the other being Azure's equivalent.shanthakumar_krishnaswamy, published 2023-08-02
SAP CAP (Java) with Amazon Aurora PostgreSQL
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
SAP CAP (Java) with Azure Cosmos DB for PostgreSQLSAP CAP (Java) with Azure Cosmos DB for PostgreSQLThe Azure half of the pair: Cosmos DB speaking PostgreSQL, used from CAP Java. Same shape as the Aurora post, and reading both is how you see what is actually portable between them.shanthakumar_krishnaswamy, published 2023-08-02
SAP CAP (Java) with Azure Cosmos DB for PostgreSQL
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
SAP CAP JWT Token Flow in codeSAP CAP JWT Token Flow in codeOne question, answered precisely: at what point does the JWT exist and how does it end up on req.headers.authorization in a CAP handler. XSUAA issues it and the approuter carries it, and the post follows it through both.sandeepmalhotra, published 2023-04-03
SAP CAP JWT Token Flow in code
Authentication changed in CAP Java 3.0.1, 2024-07-26. Affects Runnable code.
SAP CAP Lessons Learned: Run a CAP app using SQLite on SAP BTP - Cloud FoundrySAP CAP Lessons Learned: Run a CAP app using SQLite on SAP BTP - Cloud FoundrySQLite past the point it is meant to go — deployed, not local. Written as a lesson learned rather than a recommendation, and it pairs with the author's own note that SQLite is single threaded.LucasMagriniRigo, published 2024-12-30
SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)A working editor setup for CAP with TypeScript, listed extension by extension across the Node.js and UI5 halves. The kind of post that ages by attrition rather than by being wrong — the reasoning about what an editor needs to know about a CDS project outlives any particular extension in the list.published 2024-04-29
SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)
Editor support changed in @sap/cds-dk 8.8.0, 2025-03-04. Affects Runnable code.
SAP CAP: Controller - Service - Repository architectureSAP CAP: Controller - Service - Repository architectureThe pattern the author's two libraries exist to support, set out as a whole rather than one package at a time: a controller layer receiving the request, a service layer holding business logic, and a repository layer owning persistence — the separation CAP leaves to the developer once a model has produced an OData service. Read after the dispatcher and repository posts, or before them as the argument for both.published 2024-04-22
SAP CAP: Controller - Service - Repository architecture
@dxfrontier/cds-ts-dispatcher has been through 4 major lines since this was published, most recently 4 (2025-01), 5 (2025-07), 6 (2026-07). Affects Runnable code.
SAP CAP(Cloud Application Programming)开发框架概述SAP CAP(Cloud Application Programming)开发框架概述A Chinese-language walkthrough of CAP built mainly from CAPire's own "About CAP" page: CDS entities, associations, compositions and aspects for data modelling, with an extend Books with @restrict: [{ grant:'WRITE', to:'admin' }] aspect as its authorization example; CQL and CQN queries shown against both a local service and OData's $select/$expand; and the service-and-event model — this.on, this.emit, srv.on — that carries CAP's async processing. It closes with the author's own setup: installing @sap/cds-dk, scaffolding a bookshop project with cds init, and running it with cds watch against local SQLite, mocked authentication and file-based messaging standing in for HANA Cloud, IAS and Kafka.ArthurYang, published 2024-01-07
SAP CAPv7 - Node.js Highlights and ExperiencesSAP CAPv7 - Node.js Highlights and ExperiencesAn account of upgrading a 100+ table CAP Node.js project from v6 to v7, working through breaking changes in @sap/cds 7: event handlers now always receive an array, service paths move under /odata/v4/... unless serve_on_root is set, and cds-serve replaces cds run. It goes deepest on the GraphQL plugin, @cap-js/graphql: the /graphql endpoint it serves, Composition results wrapped in a nodes connection, and offset-based pagination reached through OData's top and skip rather than GraphQL's own limit and offset.published 2023-08-03
SAP Cloud Logging Serviceでコンテナメトリクスを監視するSAP Cloud Logging Serviceでコンテナメトリクスを監視するIn Japanese. Container metrics for a CAP Node.js application into SAP Cloud Logging Service, and the reason it exists is that the obvious route does not apply: Spring Boot Actuator covers the Java side, and Node has no equivalent, so the author reaches for Telegraf instead. The procedure is deliberately independent of application logic — bind the instance, add a startup script and a config file — so it works against an application you already have.kyoneo, published 2024-03-26
SAP Event Mesh: S4 HANA On-Prem and SAP CI(BTP IS) through WebSocket and WebhooksSAP Event Mesh: S4 HANA On-Prem and SAP CI(BTP IS) through WebSocket and WebhooksA step-by-step walkthrough of wiring Event Mesh to publish and consume events between an on-premise S/4HANA system and Cloud Integration, contrasting persistent queues (one subscriber, kept until consumed) against unpersisted topics, and WebSocket's AMQP transport against webhook delivery for the same queue. Two tested findings support it: a queue consumer running in continuous consumption mode receives a message ahead of a webhook on the same topic, and a message stays queued and is retried (almost 8770 times in under a minute, in the author's test) until the consumer processes it successfully.FarooqAhmed, published 2023-10-03
SAP Incentive Management - Understanding of CSN file & CLI Command to generateSAP Incentive Management - Understanding of CSN file & CLI Command to generateCSN met from the far end: not as CAP's compiled model but as the interchange format a product hands to Analytics Cloud so a story knows the shape of the data. Explains what CSN is, why the format matters here, and the command that produces one.Yogananda, published 2024-11-19
SAP PI Migration to BTP Integration Suite Patterns and learning experiencesSAP PI Migration to BTP Integration Suite Patterns and learning experiencesWalks through the integration patterns an SAP PI migration project moved onto SAP Cloud Integration iFlows — API Management proxies fronting calls into on-premise SAP systems over XI/SOAP via Cloud Connector, SFTP transfers, and eventing routes — and the operational lessons from running it: sizing JMS queues, choosing exactly-once JMS queues over Cloud Integration's Data Store for XI receiver adapters and at-least-once JMS for XI sender adapters, and workarounds for gaps in the migration tooling. The API Management proxies handle JWT validation against a non-SAP identity provider, IP filtering and OData-to-OpenAPI conversion in front of the iFlows.saikrishna_kalivarapu2, published 2024-12-04
SAP SuccessFactors extensibility easy with SAP BTP, Kyma runtimeSAP SuccessFactors extensibility easy with SAP BTP, Kyma runtimeSuccessFactors extensibility called directly from Kyma, with OAuth2SAMLBearerAssertion doing the identity part. Long, and code-first — the author leads with the sample rather than with the architecture.quovadis, published 2023-05-22
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPSAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPGetting UI5 Tooling and the CAP server onto one port under one command, using cds-plugin-ui5 — which the post presents as the thing that removes the proxy and destination configuration a full-stack dev setup otherwise needs. Part one of a journey that goes on to put the approuter in front at development time.published 2023-10-13
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAP
cds-plugin-ui5 has been through 11 major lines since this was published, most recently 0.15 (2025-11), 0.16 (2025-12), 0.17 (2026-03). Affects Runnable code.
SAP: Email Functionality in SAP with a Custom Function ModuleSAP: Email Functionality in SAP with a Custom Function ModuleA custom ABAP function module, ZFM_SEND_EMAIL, sends mail through Business Communication Services' CL_BCS and CL_DOCUMENT_BCS classes, adding TO/CC/BCC recipients and multiple attachments by building the HTML document in application code on top of what CL_BCS delivers, which is how ABAP's notifications capability describes mail going out. The send sits in a TRY structure whose three CATCH blocks for CL_BCS's class-based exceptions are empty, so what reaches the caller is a BAPIRET2 table that BAPI_MESSAGE_GETDETAIL fills on the paths without an exception: no recipients given, sent to all, or not sent. That conversion into a caller-facing message table is what ABAP's error handling capability leaves to the application.Surendra_Karma, published 2024-12-16
SFTP File Level Checks in SAP BTP Cloud IntegrationSFTP File Level Checks in SAP BTP Cloud IntegrationFor an SFTP flow in Cloud Integration that an external party triggers, the post recommends polling with SFTP Poll-Enrich rather than relying on the Sender SFTP adapter and its built-in scheduler, and because Poll-Enrich polls one file per trigger, the design is a Main flow whose Looping Process Call repeatedly invokes a Local Integration Process that holds the Poll-Enrich step. On top of that design, it adds four router conditions, each checked against SAP_PollEnrichMessageFound, CamelLoopIndex, CamelFileName or CamelFileLength: no file found on the first poll, no more files left mid-loop, more than one file present when exactly one should be processed, and an empty file, each letting the flow terminate or raise an exception instead of failing on an unhandled read.Srishti_Gupta, published 2024-09-16
Sharing SAP HANA Cloud instance to multiple subaccounts and creating HDI containersSharing SAP HANA Cloud instance to multiple subaccounts and creating HDI containersOne HANA Cloud instance, several subaccounts, an HDI container created from each — the arrangement that keeps a landscape from paying for a database per subaccount. Written against a CAP project, so the container mapping is shown from the side that has to consume it.published 2024-03-23
Sharing SAP HANA Cloud instance to multiple subaccounts and creating HDI containers
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Side Effects in Fiori: Triggering Actions and Updating Data in Your Unmanaged RAP ApplicationSide Effects in Fiori: Triggering Actions and Updating Data in Your Unmanaged RAP ApplicationShows how to add a Common.SideEffects Fiori annotations block to an unmanaged RAP application's annotation.xml, naming the action and the navigation path of the entity set it should refresh, for the case the RAP layer does not refresh automatically: a bound action whose returned instance differs from the bound one, a copy action for example. Works through a "Redetermine All Quotations" button as the example and verifies the resulting POST and GET calls in the browser's network tab.VarunVarshney, published 2024-09-02
Simplifying SaaS Self-Onboarding Automation using Terraform in Kyma and Cloud FoundrySimplifying SaaS Self-Onboarding Automation using Terraform in Kyma and Cloud FoundrySelf-onboarding automated with Terraform across both runtimes rather than one, which is the point — the same subscriber flow described for Kyma and for Cloud Foundry side by side.martinfrick, published 2023-09-07
Simplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightSimplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightClient-certificate login to BTP works locally and has historically not worked in automated pipelines. The post uses Playwright's then-new client certificate support to close that, which is a sideways use of a browser automation library and the reason it is worth recording — the constraint it removes is a CI constraint, not a testing one.published 2024-11-08
Speed up deployment for CAP using TurborepoSpeed up deployment for CAP using TurborepoImpatience as a method: minutes of waiting on MBT and cf deploy sent the author looking for alternatives. It is fair to MBT first — a wrapper doing the whole deployment in one go, creating services and applications along the way — before showing what Turborepo changes about the build half. The trade it makes is explicit rather than assumed.published 2024-12-06
Speed up deployment for CAP using Turborepo
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects Runnable code.
SQLite as database for a multi-target (/productive) CAP ApplicationSQLite as database for a multi-target (/productive) CAP ApplicationOpens with "Not recommended but possible", and then names the two cases where it is the right call anyway: a showcase, and a landscape with no HANA Cloud available. The caveat is the content.Christopher_Ketzler, published 2024-07-05
SQLite as database for a multi-target (/productive) CAP Application
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
Surviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtimeSurviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtimeAn episode of the author's #CAPTricks series, and it reads like one — long, opinionated, and organised around the things that actually go wrong on the way to a deployed CAP application rather than around the documented happy path.maxstreifeneder, published 2023-03-07
Surviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtime
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe, Runnable code.
Surviving and Thriving with the SAP Cloud Application Programming Model: Local development hurdlesSurviving and Thriving with the SAP Cloud Application Programming Model: Local development hurdlesThree hurdles in running a CAP application locally: services mocked with cds run --with-mocks return no data across OData associations until the ON clause is hand-written into the imported CDS, an on-premise API reached through the SAP Cloud Connector times out because its proxy is part of destinations and connectivity and reachable only from inside SAP BTP, and a Fiori frontend served from the HTML5 Application Repository needs the HTML5 Repo Mock to reach a local backend at all. It closes with the launch configurations the author uses for debugging cds watch locally and attaching to a running Cloud Foundry instance.maxstreifeneder, published 2023-02-02
Testing SAP Build Process Automation task UI in SAP Business Application StudioTesting SAP Build Process Automation task UI in SAP Business Application StudioA task UI built from the Workflow Task UI template cannot be run in Business Application Studio: it expects the task model and the inbox API as startup parameters, and without them it fails before the view renders. The post shows the error, explains why it happens, and supplies a wrapper that provides the missing context locally, so the alternative to deploying on every change is not deploying on every change.published 2023-10-15
The fastest and easiest way to run full-stack applications in SAP Business Application StudioThe fastest and easiest way to run full-stack applications in SAP Business Application StudioThe gap between a mocked local run and a real one, and the tooling that closes it — live data, remote services, defaults overridden. The same author's Run Configurations post is the reference for the tool; this is the case it was built for.liat_b, published 2023-08-02