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Source QiitaSource SAP Architecture CenterSource SAP Developer CenterSource SAP CommunityPublished 2024Published 2025Clear all
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Basic code's of ABAPBasic code's of ABAPNine standalone ABAP reports built around REUSE_ALV_GRID_DISPLAY and CL_SALV_TABLE, covering display, screen validation, spool creation, Excel upload and table maintenance without SM30. One report raises and catches a custom exception class with RAISE EXCEPTION and TRY/CATCH, the class-based mechanism error handling names for ABAP; another submits a job to spool, converts it to PDF with CONVERT_ABAPSPOOLJOB_2_PDF and exports a CL_SALV_TABLE result to Excel before mailing both, producing document output from spool rather than Form Builder.RakeshZore, published 2025-09-30
Beginners Guide to Advanced Event MeshBeginners Guide to Advanced Event MeshA scenario-by-scenario walkthrough of Advanced Event Mesh, run through Cloud Integration iFlows: publishing and consuming queue messages, dead message queue setup with retry counts and acknowledgment modes, direct messages, durable topic endpoints and selectors, time-to-live, REST Delivery Points, replay by replication group message ID, parallel consumers with partition keys, and the request-reply pattern. Each scenario is built and verified step by step against a Solace trial account standing in for AEM.PriyankaChak, published 2025-07-24
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
Effective Axios Error Logging for Robust SAP IntegrationsEffective Axios Error Logging for Robust SAP IntegrationsTwo logged failures printed side by side, and the point is made by looking at them: one tells you what went wrong and one does not. Axios buries the useful part of an HTTP error, and this is what to unwrap before logging it from a CAP service.Sahil2508, published 2025-08-31
How to create a Purchase Order through BAPI in the SAP through program ( SE38 ) T-CODE .How to create a Purchase Order through BAPI in the SAP through program ( SE38 ) T-CODE .Walks through creating a purchase order from an ABAP report (SE38) by filling the BAPIMEPOHEADER/BAPIMEPOITEM structures and their X-indicator counterparts, then calling BAPI_PO_CREATE1 within the same session. Its error handling centres on the BAPIRET2 return table: looping over entries typed E or A, skipping BAPI_TRANSACTION_COMMIT when one is found, and displaying the returned message text rather than assuming success once the function module returns.chandu_kumar_badukuri, published 2025-12-18
How to subscribe or fetch data from solace to CPI using AEM Adapter : part-5How to subscribe or fetch data from solace to CPI using AEM Adapter : part-5Closes a series on event-driven architecture with Solace by detailing the subscriber side of an iFlow in Cloud Integration: an advanced event mesh adapter feeds an exception subprocess, and a Groovy step classifies each failure as recoverable, left to Solace's own retry, or non-recoverable, answered with a custom property that tells Solace to stop retrying before the message reaches an escalation layer. The escalation layer names email, ServiceNow and Loggly as destinations without explaining any of them.pavanKolla, published 2025-08-03
Making the Case for Enhanced REST Adapter in SAP Integration SuiteMaking the Case for Enhanced REST Adapter in SAP Integration SuiteCatalogues what SAP Integration Suite's native HTTP adapter supports for authentication (Basic, OAuth 2.0 client credentials and client certificates on the sender; OAuth 2.0 client credentials and SAML bearer assertion on the receiver) and for error handling (retry on HTTP failure only, with no pattern-based retry, failure queues or dead-letter queues), and that it has no OpenAPI import or export. Three worked scenarios, FedEx shipment tracking, Avalara AvaTax and SAP Ariba's operational reporting API, name what that leaves to Groovy scripting: the other OAuth 2.0 flows, gzip and multipart payloads, and pagination that chains a nextPageToken by JSONPath, which is the case the piece makes for the third-party Advantco REST Adapter.peter_ha3, published 2025-07-14
Migration Journey from MuleSoft to SAP Integration Suite (CI)Migration Journey from MuleSoft to SAP Integration Suite (CI)Maps MuleSoft Anypoint's error handling onto SAP Integration Suite: the Global Error Handler and MuleSoft's built-in retries become Exception Subprocesses with scripted Groovy retry logic or JMS-based retry, since Cloud Integration has no automatic equivalent. MuleSoft's searchable logger text becomes Content Modifier headers and Groovy-scripted Message Log entries, correlated by application message ID and correlation ID for traceability across complex interfaces. The mapping is drawn from the author's own migration project across assessment, development and validation phases, and is explicitly flagged as not an SAP- or MuleSoft-approved design.Shailaja, published 2025-09-21
New tutorial for UI5 Middleware FE MockserverNew tutorial for UI5 Middleware FE MockserverA step-by-step tutorial accompanying a Devtoberfest session walks through @sap-ux/ui5-middleware-fe-mockserver across nine exercises: zero-config mock data generated from OData metadata, custom JSON datasets with consistent IDs and referential keys, JavaScript actions, multi-service and cross-service scenarios, tenant isolation through sap-client, returning 400/404/422/500/501 responses for UI error-handling tests, and offline end-to-end tests run with wdi5. A companion tool, ui5-middleware-odata-recorder, captures real backend OData traffic to generate the mock datasets used for offline replay.published 2025-10-14
Parallel Data Filtering and Dropbox Integration Using SAP Cloud IntegrationParallel Data Filtering and Dropbox Integration Using SAP Cloud IntegrationA step-by-step build of an integration flow in Cloud Integration: a Start Timer triggers the flow, a Parallel Multicast splits student records by gender through XPath filters, and each branch uploads its file to Dropbox over a Receiver Adapter authorized against a Dropbox app's OAuth2 credentials. An Exception Subprocess captures the error message and a Mail Adapter sends it over SMTP, centralizing error handling and an email notification for the whole flow.Vurumind03, published 2025-12-10
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
Calling the Sales Order (A2X) OData V2 API from BTP Using a Service Consumption ModelCalling the Sales Order (A2X) OData V2 API from BTP Using a Service Consumption ModelWalks through ABAP's Service Consumption Model for OData V2 in ABAP Development Tools for Eclipse: generating a client proxy from the Sales Order (A2X) API's downloaded EDMX, then using it from an ABAP console class to create a deep sales order with items, texts, partners and pricing elements, read it back and patch a field. The client itself is built the way HTTP clients describes for SAP BTP ABAP environment: a communication arrangement resolved through cl_http_destination_provider=>create_by_comm_arrangement, handed to cl_web_http_client_manager=>create_by_http_destination, reaching the inbound SAP_COM_0109 scenario configured on the SAP S/4HANA Cloud Public Edition side.Katsiaryna_Darapeika, published 2025-02-04
Calling the Sales Order (A2X) OData V4 API from BTP Using a Service Consumption ModelCalling the Sales Order (A2X) OData V4 API from BTP Using a Service Consumption ModelWalks through calling SAP S/4HANA Cloud Public Edition's Sales Order (A2X) OData V4 API from an ABAP class on SAP BTP ABAP environment: a communication arrangement on each side, a Service Consumption Model built in ADT from the API's downloaded EDMX, and a client proxy wired through cl_http_destination_provider=>create_by_comm_arrangement and cl_web_http_client_manager=>create_by_http_destination, the same HTTP clients pattern for ABAP for Cloud Development. The sample class creates a deep sales order with an item, a text, a partner and a pricing element, reads it back, then updates a field guarded by its ETag.Katsiaryna_Darapeika, published 2025-02-06
Invoking Business Agent Foundation Agents from ABAP: A Step-by-Step GuideInvoking Business Agent Foundation Agents from ABAP: A Step-by-Step GuideWalks through calling a Business Agent Foundation agent's chat endpoint from an on-premise ABAP report: an OAuth 2.0 client profile configured in SE80/SOAUTH2_CLIENT with client-credentials grant against the service key, an HTTP (type G) RFC destination in SM59 bound to that profile, and an ABAP report using CL_HTTP_CLIENT=>CREATE_BY_DESTINATION to POST a JSON message to the agent's sendMessage endpoint and extract the reply by splitting the response string. The destination and client code are the same shape as any outbound REST call from ABAP; nothing here is specific to the agent service beyond the request body and URL.tanmay_0117, published 2025-11-26
Outbound Integration from SAP BTP, ABAP to SAP S/4HANA Cloud via Service Consumption ModelOutbound Integration from SAP BTP, ABAP to SAP S/4HANA Cloud via Service Consumption ModelWalks through ABAP's Service Consumption Model for OData in ABAP Development Tools for Eclipse: generating a V4 client proxy from a remote service's EDMX metadata, then calling one of its bound actions by hand because the 2311 release's ADT tooling does not yet generate that code. The client itself is built the way HTTP clients describes for SAP BTP, ABAP Environment — a communication arrangement resolved through cl_http_destination_provider=>create_by_comm_arrangement, handed to cl_web_http_client_manager=>create_by_http_destination to create the client.Pramathesh_t_s, published 2025-10-28
Usage of Expand Entity in OData Service Consumption ModelUsage of Expand Entity in OData Service Consumption ModelExplains how to use OData's $Expand option when SAP BTP, ABAP Environment consumes a remote service through a generated client proxy, the way HTTP clients describes it, using stubs ABAP Development Tools for Eclipse generates from the service's $metadata. The expanded association only comes back from get_business_data when the caller supplies its own ABAP type that redeclares the association as a nested table, in place of the generated CDS entity type. The same workaround still applies from release 2311 on, where the consumption model generates flat ABAP types rather than abstract CDS entities.alrikx, published 2024-02-08
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
How to use reserved words as property names in your OData service?How to use reserved words as property names in your OData service?Setting a CDS view alias to a reserved OData word, such as Number, fails compilation with 'NUMBER is a reserved word'. The fix for a RAP-based OData service is the @odata.property.name annotation: it lets the underlying CDS view keep a compiler-safe name (NumberInStock) while the $metadata EntityType still exposes the field as Number, shown against a products view and its generated EDMX.Andre_Fischer, published 2025-11-10
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
Create CDS Views and expose through OData service in CAPMCreate CDS Views and expose through OData service in CAPMViews defined in CDS and then exposed, which is the whole of what a small CAP service is. Written step by step from cds init onward in Business Application Studio.VenkateshMundru, published 2025-08-11
Generating Adobe Form Using RAP framework OData ServicesGenerating Adobe Form Using RAP framework OData ServicesModels a RAP root view entity and consumption view over a custom sales-order table, built with ABAP CDS, and exposes it through a service definition and an OData V2 UI service binding. A separate SEGW project implements GET_STREAM to call an Adobe Form driver class and stream the rendered PDF back as the response, with a computed link field added to the CDS view so the UI can open it. The PDF is generated in the backend and returned to the calling program rather than sent straight to a printer.Megastar, published 2025-03-18
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
How to Perform Initial Loads from S/4HANA to Advanced Event Mesh with Odata PollHow to Perform Initial Loads from S/4HANA to Advanced Event Mesh with Odata PollWalks through building a Cloud Integration flow that polls the S/4HANA Business Partner OData API on a timer, splits the response into individual records, and publishes each as an event to Advanced Event Mesh through its adapter, with the topic set dynamically from a grouping property. Selects fields and expands associations with $select/$expand against an EDMX from the API Business Hub, and works around the OData V2 adapter's lack of JSON support by falling back to the HTTP adapter with an XML-to-JSON converter. Flags the trade-off: the pattern needs no backend change beyond activating the API, but the polled payload has to stay aligned with whatever event format the ERP pushes on change.AlexPfeil, published 2025-04-04
OData Deep Insert: Implementation and Real-Life ExamplesOData Deep Insert: Implementation and Real-Life ExamplesWalks through implementing OData Deep Insert on classic SAP Gateway: two entity types joined by an association in SEGW, and a redefined CREATE_DEEP_ENTITY method in the DPC_EXT class that unpacks the header and item payload and calls BAPI_SALESORDER_CREATEFROMDAT2 to create a sales order with its line items in one request instead of separate calls per item. Gives a sample JSON payload to test with Postman or /IWFND/GW_CLIENT and names the usual failure points — an unmapped association, a method that was never redefined, or a commit left out after the BAPI call.SRSATAPATHY, published 2025-09-15
S/4HANA公有云版的内部ABAP拓展S/4HANA公有云版的内部ABAP拓展Argues that S/4HANA Cloud public edition's in-app ABAP extensibility is still real ABAP development, just under stricter rules: developer extensions require ABAP Development Tools rather than SAP GUI transactions, data models are defined as CDS views instead of SE11 tables, business logic is a RAP behavior definition instead of a function module, and service exposure is an auto-generated OData service from a Service Definition instead of a hand-built RFC/BAPI. The piece walks a worked example — a Fiori app that triggers the Purchase Requisition API — through CDS, RAP, OData activation on SAP Gateway, and authorization via business catalogues, and frames the whitelist of released APIs and CDS views as upgrade-safety rather than a restriction.ArthurYang, published 2025-11-24
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
Step-by-Step Guide to Display System Details on SAP Fiori Launchpad ShellStep-by-Step Guide to Display System Details on SAP Fiori Launchpad ShellA step-by-step build of a plugin for the SAP Fiori launchpad shell that shows the system ID and client on every app it hosts: an OData service modelled in SAP Gateway Service Builder (SEGW), its GetEntitySet method redefined to call the function module RSAPI_CTC_GET_SYSTEM_DETAILS, then consumed from a project in SAP Business Application Studio with the Component.js and manifest.json changes a shell plugin needs instead of a standalone app. It covers the registration step a plugin needs beyond a normal Fiori app: a Catalog and Target Mapping with Semantic Object Shell and Action Plugin, deployed on-premise and assigned to roles.RahulManchala, published 2025-07-30
The Complete Guide to Calling Actions in UI5 with Custom CodeThe Complete Guide to Calling Actions in UI5 with Custom CodeWritten because the documentation is thin and the samples sparse, and openly as a note to the author's future self — hand-coding an action call has become a rare task for anyone mostly working in Fiori elements, which is exactly why it is hard to look up when it comes round. Comes with a CAP sample project, so the service half is there too.published 2025-07-21
Making the Case for Enhanced REST Adapter in SAP Integration SuiteMaking the Case for Enhanced REST Adapter in SAP Integration SuiteCatalogues what SAP Integration Suite's native HTTP adapter supports for authentication (Basic, OAuth 2.0 client credentials and client certificates on the sender; OAuth 2.0 client credentials and SAML bearer assertion on the receiver) and for error handling (retry on HTTP failure only, with no pattern-based retry, failure queues or dead-letter queues), and that it has no OpenAPI import or export. Three worked scenarios, FedEx shipment tracking, Avalara AvaTax and SAP Ariba's operational reporting API, name what that leaves to Groovy scripting: the other OAuth 2.0 flows, gzip and multipart payloads, and pagination that chains a nextPageToken by JSONPath, which is the case the piece makes for the third-party Advantco REST Adapter.peter_ha3, published 2025-07-14
A Practical Real-Time CTI Widget for SAP Sales Cloud V2A Practical Real-Time CTI Widget for SAP Sales Cloud V2A small CAP backend, a WebSocket channel and a UI5 widget in an iframe — enough to get telephony events into Sales Cloud without any custom backend inside the CRM. The smallness is the design.gizemsoylutr, published 2025-11-28
Communicate from a Java Application to ABAP via WebSocket RFC using JCo - Migration GuideCommunicate from a Java Application to ABAP via WebSocket RFC using JCo - Migration GuideWalks a JCo setup from classic CPIC-based RFC to WebSocket RFC: swap the application- or message-server logon properties for jco.client.wshost and jco.client.wsport, and implement DestinationDataProvider's getSSLContext (and, for mTLS, getClientCertificate) since the new connection runs over TLS. It covers building the PKI trust on both sides — a local PKCS12 keystore for the Java side, STRUST's SSL-Server Standard certificate exported and imported for mutual trust on the ABAP side — and notes that on BTP, JCo paired with the Destination service already implements this via the Connectivity service, so the custom SSLContext work can be skipped there.simon_luser, published 2025-01-21
Streaming LLM Output with CAP and WebSocketsStreaming LLM Output with CAP and WebSocketsTokens arriving from the AI SDK's orchestration module, forwarded to the browser as they come rather than after the model finishes. Covers all four pieces — enabling WebSocket support in CAP, a service with actions and events, the streaming itself, and a frontend on the native WebSocket API — which is what makes it the clearest case for why a CAP service would want a socket at all.RobinP, published 2025-11-18
Streaming LLM Output with CAP and WebSockets
LLM integration changed in @cap-js/ai 1.0.0, 2026-04-28. Affects A recipe, Runnable code.
Federated Machine Learning with SAP DatasphereFederated Machine Learning with SAP DatasphereSAP's design for training predictive models on an external machine learning platform against SAP Datasphere data that is not replicated to that platform. The open-source FedML Python library runs in the platform's notebook, connects to Datasphere over Python/SQLDBC and reads the analytic models in which Datasphere unifies SAP and non-SAP sources; a trained model can then be deployed to SAP AI Core, or in several sub-pages to SAP BTP, Kyma runtime, which is the predictive models path where training happens outside SAP. Sub-pages cover Amazon SageMaker, Azure Machine Learning, Google Vertex AI, Databricks, NVIDIA RAPIDS on GPUs and IBM watsonx.published 2025-01-23
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
Building an Attachment Upload and Download Solution Using UploadSetwithTable ControlBuilding an Attachment Upload and Download Solution Using UploadSetwithTable ControlThe successor control to UploadSet posts the file in one request by default, and against CAP that is wrong: the record has to be created first and the content put to it afterwards. The author states the two-step shape plainly and notes it may not apply to an ABAP backend, which is the kind of boundary that usually goes unsaid. Written during a proof of concept for a reusable attachment component, and it carries the problem they hit with the control.published 2025-03-13
Configure Journal Entry Posting Approval from Store Template in Build Process AutomationConfigure Journal Entry Posting Approval from Store Template in Build Process AutomationWalks through deploying SAP's Journal Entry Posting Approval template from the SAP Build Process Automation Store against an on-premise S/4HANA system that has no Secure Network Connection: destinations for S/4HANA via Cloud Connector, for SAP Document Management service, integration option to hold the approval's supporting documents, and for the BPA service and its SMTP mail. It then swaps the template's SNC action groups for basic-connection BAPI calls and deploys the approval's UI5 applications so the task lands in My Inbox, with a Desktop Agent registered to run the unattended document-check and document-post automations.published 2025-01-28
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
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.
Major updates to the Attachments plugin – multi-cloud support, malware scanning and moreMajor updates to the Attachments plugin – multi-cloud support, malware scanning and moreMulti-cloud storage and malware scanning added to the official plugin, framed through CAP's Calesi pattern — the argument being that a service interface is what lets the storage underneath change without the application noticing. The post that a triage bug hid: "attachment" had stopped matching "Attachments".published 2025-12-02
Major updates to the Attachments plugin – multi-cloud support, malware scanning and more
@cap-js/attachments 3.4.0, now 4.0.0, com.sap.cds:cds-feature-attachments 1.2.2. Affects A recipe, Runnable code.
Unlocking Efficiency: Leveraging SAP BTP Document Management Service in Fiori Applications # 2Unlocking Efficiency: Leveraging SAP BTP Document Management Service in Fiori Applications # 2Document Management's own Attachment Reuse UI dropped into a Fiori elements List Report, in two variants — OData V2, and OData V4 in a CAP application. The CAP half is one of the two scenarios rather than the subject; the rest of the series is about custom Fiori apps and a process task UI, with no CAP in them.published 2024-12-10
Uploading attachment with cap-js/attachment plugins but via External App/PostmanUploading attachment with cap-js/attachment plugins but via External App/PostmanThe plugin is written for a Fiori elements front end; this is the case where the caller is neither — Postman and a React app. Short, and it exists because the request shape is not obvious from outside the generated UI: what to POST, what to PUT, and in which order.published 2025-07-24
Use SAP Document Management Service Plugin In CAP NODEJS Step by Step GuidanceUse SAP Document Management Service Plugin In CAP NODEJS Step by Step GuidanceThe official plugin is documented in capire; this is somebody who set it up anyway and wrote down where it went wrong. The author says as much — the point is to spare customers the troubles, so the value is in the order of the steps and the prerequisites, not in the API.Jacky_Liu1, published 2025-03-06
Working with the Attachment plugin - Cloud Application ProgrammingWorking with the Attachment plugin - Cloud Application ProgrammingOne instalment of the author's own series working through the CAP plugins one at a time, and it reads as that: what the plugin does, how it does it, and how to put it in a service. Written from the plugin list in capire rather than from a problem, which makes it the plainest introduction here.published 2024-05-18
Working with the Attachment plugin - Cloud Application Programming
@cap-js/attachments has been through 3 major lines since this was published: 2 (2025-03), 3 (2025-10), 4 (2026-08). Affects A recipe, Runnable code.
Boosting performance in SAP Cloud Application Programming Model (CAP) applications with cds-cachingBoosting performance in SAP Cloud Application Programming Model (CAP) applications with cds-cachingThe plugin's introduction post: what cds-caching is for, how it is put together and the cases it was written against. The edge holds because the plugin's README still points here as the piece to read first, so this is where a reader arriving at the plugin is sent. It predates version 1.0 and the API has moved since: the read-through calls it shows as cache.run() and cache.send() are the ones the README now lists as deprecated in favour of cache.rt.*, which returns the cache key and hit/miss metadata alongside the result, and 1.0 made user, tenant and locale awareness opt-in under keyManagement rather than folding them into request-based keys by default. Metrics and monitoring, the OData API and full TypeScript definitions arrived with 1.0 and are described in CAP just got faster: What's new in cds-caching 1.0 instead. The reasoning about when a CAP service wants a cache still reads true; the call sites need translating.published 2025-06-25
Boosting performance in SAP Cloud Application Programming Model (CAP) applications with cds-caching
cds 9, maintenance until 2027-06, cds-caching 0.x, now 3.1.1. Affects A recipe.
CAP just got faster: What's new in cds-caching 1.0CAP just got faster: What's new in cds-caching 1.0What changed in cds-caching at 1.0, announced at reCAP 2025 by the plugin's own maintainer. The substantive change is the read-through API: cache.rt.run(), send(), exec() and wrap() replace the bare cache.run() and cache.send(), and each returns the cache key and hit-or-miss metadata beside the result rather than the value alone. The second is quieter and easier to miss on an upgrade: user, tenant and locale stopped being folded into request-based cache keys by default and became opt-in through keyManagement, or per operation through a key template. Both of those still describe 3.x. What does not is the second half of the post: the metrics configuration it shows was reshaped at 2.0 and the statistics and dashboard settings were removed at 3.0, so take the monitoring and dashboard sections from the README instead. Read it as the successor to the introduction post, which still shows the deprecated calls.published 2025-07-15
CAP just got faster: What's new in cds-caching 1.0
cds-caching 1.0, now 3.1.1, cds 9, maintenance until 2027-06. Affects A reference.
Performance Boost and Caching Strategy for Faster Data Access using "cds-caching" in SAP CAPPerformance Boost and Caching Strategy for Faster Data Access using "cds-caching" in SAP CAPSomebody else's account of using the plugin, which is the useful counterpart to its documentation. The case is specific: a master-data entity of more than a million rows, rarely written and constantly read, where the read-heavy shape is what makes caching worth the complexity rather than a general performance wish. Walks through integrating cds-caching into that application and what it changed.NaveenChandar, published 2025-03-04
Performance Boost and Caching Strategy for Faster Data Access using "cds-caching" in SAP CAP
cds-caching has been through 4 major lines since this was published, most recently 1 (2025-07), 2 (2026-07), 3 (2026-08). Affects A recipe, Runnable code.
A CAP Plugin for Flexible Number Range Management: cds-numberrange-pluginA CAP Plugin for Flexible Number Range Management: cds-numberrange-pluginThe author's own plugin, and the reason given for writing it is about plugins rather than about number ranges: a year of using them convinced them that this was the way to extend CAP without leaving marks on the application. Sequential document numbers are the thing it does; keeping the host project clean is the thing it argues for.abdulbasit, published 2025-06-17
Building an Enterprise Application Using Fiori Elements and CAP - Part 1Building an Enterprise Application Using Fiori Elements and CAP - Part 1Part one of three, and it is all backend: the CAP service the UI will sit on. The author states the constraint the series works under — simple enough for someone new to the stack, without departing from the standard project layout.Farooq, published 2025-12-10
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
Create CDS Views and expose through OData service in CAPMCreate CDS Views and expose through OData service in CAPMViews defined in CDS and then exposed, which is the whole of what a small CAP service is. Written step by step from cds init onward in Business Application Studio.VenkateshMundru, published 2025-08-11
Generating Adobe Form Using RAP framework OData ServicesGenerating Adobe Form Using RAP framework OData ServicesModels a RAP root view entity and consumption view over a custom sales-order table, built with ABAP CDS, and exposes it through a service definition and an OData V2 UI service binding. A separate SEGW project implements GET_STREAM to call an Adobe Form driver class and stream the rendered PDF back as the response, with a computed link field added to the CDS view so the UI can open it. The PDF is generated in the backend and returned to the calling program rather than sent straight to a printer.Megastar, published 2025-03-18
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
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 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
Understanding Projections in CAPM: Select Only What You Need!Understanding Projections in CAPM: Select Only What You Need!One concept, explained by someone who had just learned it and says so — what a projection is, why it matters, and an analogy. The register is unusual here and suits the subject: projections are the first thing that makes CDS feel different from a table.Avisek_, published 2025-06-10
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.
Accelerating Your Analytics with Delta Table Replication into SAP HANA CloudAccelerating Your Analytics with Delta Table Replication into SAP HANA CloudStarting with QRC 04/2025, SAP HANA Cloud can replicate a Delta Lake table from an external Delta Sharing source directly into a native HANA table, rather than only querying it live through a virtual table. The post walks through creating a remote subscription, running a chunk-based initial load, and setting up change data capture on a schedule or on demand, each with the SQL statements and monitoring views involved, plus the simpler virtual-table-toggling and HANA Cloud Central UI alternatives.SeungjoonLee, published 2025-12-22
CAPM Basics - Part 2CAPM Basics - Part 2Walks through deploying a CAP application to SAP BTP, Cloud Foundry Runtime: provisioning a SAP HANA Cloud instance and HDI container, then running cds add hana and cds add xsuaa --for production, cds build --production, and an MTA build and deploy. Tests the deployed service in Postman with an OAuth 2.0 client credentials token from the XSUAA binding (SAP Authorization and Trust Management service), explicitly leaving out any role templates or scopes.archisman92, published 2025-02-28
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
Create a CAP Application with SAP HANA Cloud from Scratch and Deploy to Cloud FoundryCreate a CAP Application with SAP HANA Cloud from Scratch and Deploy to Cloud FoundryThe whole lifecycle in one post rather than a series — model, service, HANA binding, build, deploy. Useful as a single reference for the order things have to happen in, which is the part that is easy to get wrong when it is spread over six posts.MaheshSirsat1708, published 2025-11-19
Create a CAP Application with SAP HANA Cloud from Scratch and Deploy to Cloud Foundry
Database connectors changed in @sap/cds 10.1.0, 2026-09-07. Affects A recipe.
Creating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application StudioCreating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application StudioHybrid testing is documented for HANA; this is the same profile against a PostgreSQL instance on BTP, driven from a BAS dev space rather than a laptop. Proposed under editor support because of where it runs, but the subject is the binding: what cds bind writes, and what has to be true of the service instance and the tunnel for a local process to reach it.valentincadart, published 2025-10-02
Creating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application Studio
Database connectors changed in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Lets Talk to the Database - CAP & SQLite Powered by Google Gemini-2.5-ProLets Talk to the Database - CAP & SQLite Powered by Google Gemini-2.5-ProNatural language against a CAP service on SQLite, with a non-SAP model doing the translation. Written as a learning exercise rather than a pattern, and the choice of Gemini over anything in the AI hub is the interesting part of it.ShivamShuklaSAP, published 2025-04-16
Medallion Reference Architecture for Big Data Processing in SAP HANA CloudMedallion Reference Architecture for Big Data Processing in SAP HANA CloudSAP's medallion layout for SAP HANA Cloud: structured, semi-structured and unstructured data lands raw in HANA Cloud, data lake files as the bronze layer, is cleansed into a common structure in silver, held in data lake files or the HANA database, and is curated and read-optimised in gold, from where it can also be exposed as a Delta Share. The staged path from raw to consumable is the ground loading a warehouse covers, with Spark jobs and SAP Datasphere data flows named as ways to move data between layers and SAP Analytics Cloud among the consumers of gold. It leaves the ingestion method open, to be chosen by source, freshness and performance, and names no pipeline or schedule beyond that.published 2025-04-03
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 Lessons Learned: SQLite is single threaded, HANA is notSAP CAP Lessons Learned: SQLite is single threaded, HANA is notA page long, and one of the more useful pages here: the local database serialises what the deployed one runs in parallel, so concurrency bugs are invisible until they are not. Filed by the author as something the tutorials do not make clear.LucasMagriniRigo, published 2025-01-22
SAP CAP With Prostgres Serice in BTPSAP CAP With Prostgres Serice in BTPA step-by-step walkthrough of a CAP bookshop project on @cap-js/postgres, provisioning PostgreSQL on SAP BTP, hyperscaler option's trial plan through mta.yaml, building the MTA archive and deploying it to Cloud Foundry by hand, then inspecting the deployed database with pgAdmin over an SSH tunnel. It updates an earlier post by Mike Zaschka on the same topic to the package CAP now ships by default, though the manual build-and-deploy sequence it shows predates cds up folding those steps into one command by a day.satya-dev, published 2025-03-30
SAP HANA Cloud as an Esri GeodatabaseSAP HANA Cloud as an Esri GeodatabaseSAP's design for running an Esri ArcGIS Enterprise geodatabase inside SAP HANA Cloud, so that geometries and SAP business data sit in one database and are joined in a HANA calculation view, which is the spatial part of graph, spatial and document data. It traces three personas: an analyst in ArcGIS Pro building query layers over that view, a developer whose CAP application models spatial types such as ST_Point in CDS, and an analyst using a Fiori app on top of such an application. The deployment advice stops at placement: ArcGIS Server and HANA Cloud go in the same region and availability zone, because Esri's certified architectures allow under 5 milliseconds of network latency between them.published 2025-03-25
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.
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.
Using HANA Cloud’s "VECTOR_EMBEDDING" Function in CAPUsing HANA Cloud’s "VECTOR_EMBEDDING" Function in CAPEmbeddings generated inside the database rather than fetched from AI Core or an external model — a Q4 2024 HANA Cloud function, used from CAP. The shift it describes is where the embedding step lives, which changes what has to be deployed and what has to be called.published 2025-03-02
Using Postgresql Database in Cloud Application Programming modelUsing Postgresql Database in Cloud Application Programming modelA straight run through the official PostgreSQL guide with the steps spelled out, from initialising the server onward. Says as much itself — it follows the documentation rather than departing from it, which makes it the plainest of the PostgreSQL entries here.published 2024-05-14
Using Postgresql Database in Cloud Application Programming model
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 HANA Cloud as an Esri GeodatabaseSAP HANA Cloud as an Esri GeodatabaseSAP's design for running an Esri ArcGIS Enterprise geodatabase inside SAP HANA Cloud, so that geometries and SAP business data sit in one database and are joined in a HANA calculation view, which is the spatial part of graph, spatial and document data. It traces three personas: an analyst in ArcGIS Pro building query layers over that view, a developer whose CAP application models spatial types such as ST_Point in CDS, and an analyst using a Fiori app on top of such an application. The deployment advice stops at placement: ArcGIS Server and HANA Cloud go in the same region and availability zone, because Esri's certified architectures allow under 5 milliseconds of network latency between them.published 2025-03-25
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
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
Medallion Reference Architecture for Big Data Processing in SAP HANA CloudMedallion Reference Architecture for Big Data Processing in SAP HANA CloudSAP's medallion layout for SAP HANA Cloud: structured, semi-structured and unstructured data lands raw in HANA Cloud, data lake files as the bronze layer, is cleansed into a common structure in silver, held in data lake files or the HANA database, and is curated and read-optimised in gold, from where it can also be exposed as a Delta Share. The staged path from raw to consumable is the ground loading a warehouse covers, with Spark jobs and SAP Datasphere data flows named as ways to move data between layers and SAP Analytics Cloud among the consumers of gold. It leaves the ingestion method open, to be chosen by source, freshness and performance, and names no pipeline or schedule beyond that.published 2025-04-03
HANA Database Migration: Handling Incompatible Changes to Existing TablesHANA Database Migration: Handling Incompatible Changes to Existing TablesThe question schema evolution exists for, asked plainly: how do you restructure a table in a production system that already holds live data. Incompatible changes are the ones CAP's own alter path will not make, which is where this starts.Sekar Somasundaram, published 2025-04-16
Semantic search in CAP (Node.js): vector embeddings and cosine similaritySemantic search in CAP (Node.js): vector embeddings and cosine similarityFinding the best semantic match for a prompt inside an entity, using local vector embeddings and cosine similarity — and the finding the author leads with is that it works without a vector database at all. Reported as experiments rather than as a pattern, which is the honest register for it: the interesting claim is how little infrastructure the simple case needs.published 2025-12-09
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
A simple example of a SAP RAP Application based on Legacy API without UUID keysA simple example of a SAP RAP Application based on Legacy API without UUID keysWalks through building a managed RAP business object over the Flight Reference Scenario's Travel and Booking entities with unmanaged save and late numbering, so CRUD operations route through the legacy /DMO/FLIGHT_TRAVEL_CREATE, _UPDATE and _DELETE function modules instead of generated persistence, a worked case of ABAP's transactional model. Covers the ADJUST_NUMBERS and SAVE_MODIFIED saver methods that map preliminary draft keys to the legacy-assigned travel and booking IDs, and a GetDefaultsForBookings action that proposes the next booking ID during draft handling.cseijas, published 2025-09-01
BEHAVIOR_ILLEGAL_STATEMENT dump | Technical workaroundsBEHAVIOR_ILLEGAL_STATEMENT dump | Technical workaroundsThe BEHAVIOR_ILLEGAL_STATEMENT dump fires in SAP RAP when an explicit COMMIT WORK or ROLLBACK WORK, or a direct database write, collides with RAP's own transactional model: a Logical Unit of Work split into an interaction phase, where changes sit in a transactional buffer, and a save sequence that validates and persists them. The post then names four ways to move the offending statement into a separate task instead — the Background Processing Framework, parallel processing, Application Jobs, or, on-premise only, a wrapper RFC function module called with DESTINATION 'NONE' — pointing to further reading for each rather than working through any of them here.PranayGaroo, published 2025-08-11
BO Interface APIs : An alternative to BAPIs and traditional FMsBO Interface APIs : An alternative to BAPIs and traditional FMsWalks through updating an S/4HANA Purchase Order's line items through a released BO interface instead of a BAPI, using EML against the underlying CDS entity and a COMMIT ENTITIES statement because the call sits outside a behavior class. Argues the BO interface route avoids a RAP behavior class's restriction against calling COMMIT WORK directly, and covers finding a released interface's CRUD operations on api.sap.com and extending the same approach to a custom field or a custom RAP-based Fiori app's own BO.Sudhan_Nagarajan, published 2025-07-02
ABAP code to wait for the end of "inbound bgRFC type Q" unitsABAP code to wait for the end of "inbound bgRFC type Q" unitsWalks through inbound bgRFC type Q — ABAP's queue-based flavor of async processing built on background remote function calls — and gives a helper ABAP class that polls cl_qrfc_client_inbound for each unit's and queue's state until every unit submitted across a set of parallel qRFC queues has finished. The method assumes no single unit spans more than one inbound queue, and the author flags the classes it relies on, cl_qrfc_client_inbound=>get_unit_state and get_queue_state, as unverified for this use.Sandra_Rossi, published 2025-10-07
Beginners Guide to Advanced Event MeshBeginners Guide to Advanced Event MeshA scenario-by-scenario walkthrough of Advanced Event Mesh, run through Cloud Integration iFlows: publishing and consuming queue messages, dead message queue setup with retry counts and acknowledgment modes, direct messages, durable topic endpoints and selectors, time-to-live, REST Delivery Points, replay by replication group message ID, parallel consumers with partition keys, and the request-reply pattern. Each scenario is built and verified step by step against a Solace trial account standing in for AEM.PriyankaChak, published 2025-07-24
Cloud-Native with ABAP Cloud – The Transactional Outbox PatternCloud-Native with ABAP Cloud – The Transactional Outbox PatternImplements the transactional outbox pattern in ABAP Cloud's background processing framework (bgPF): a RAP business object's save sequence registers a bgPF handler implementing IF_BGMC_OP_SINGLE, and the RAP runtime runs it, and only then emits the message, after the database commit succeeds, so a rolled-back transaction emits nothing. The post walks through the full working example published as SAP-samples/abap-platform-rap-transactional-outbox-with-bgpf.published 2025-11-12
DIY JDBC Sender Adapter for SAP Integration SuiteDIY JDBC Sender Adapter for SAP Integration SuiteSimulates the JDBC Sender Adapter that SAP Integration Suite dropped from SAP PO by polling a source database with a Request/Reply step, triggered by a configurable scheduler or a manual HTTP call, and writing the result to a DataStore or JMS Queue to decouple polling from mapping and insertion. Retries run against a configured maximum, a failed batch escalates to a Dead Letter Queue once they are exhausted, and a mapping failure skips retries and escalates straight away from its own local subprocess. The author reports migrating several SAP PO scenarios onto this flow design and offers a reusable template on request.lanza, published 2025-10-21
Quick tip: event/task scheduling in CAP Node.js (in alpha state)Quick tip: event/task scheduling in CAP Node.js (in alpha state)A note on something spotted in capire's May 2025 release notes rather than a technique: CAP Node.js is to support scheduling events — actions and functions included — with callbacks, currently alpha and explicitly subject to change. Useful as a dated marker of the core moving into ground the community has been covering, and the alpha caveat is the point rather than a footnote.published 2025-10-30
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
Completing the B2B migration into SAP Integration Suite visionCompleting the B2B migration into SAP Integration Suite visionWalks through migrating SAP PI's B2B integrations — EDIFACT, X12 and other partner formats — into Trading Partner Management in SAP Integration Suite: recording test messages from SAP PI, creating partner profiles, and filling a Self Partner Agreement template that references the MIG and MAG guidelines SAP's own migration path builds on. The author's migration tool, Figaf, turns each Operation Mapping into a Process Direct flow, carrying its UDFs to Groovy or SAP's Cloud Integration Function Libraries, then reruns the recorded test cases against the result.DG, published 2025-09-09
Configure Journal Entry Posting Approval from Store Template in Build Process AutomationConfigure Journal Entry Posting Approval from Store Template in Build Process AutomationWalks through deploying SAP's Journal Entry Posting Approval template from the SAP Build Process Automation Store against an on-premise S/4HANA system that has no Secure Network Connection: destinations for S/4HANA via Cloud Connector, for SAP Document Management service, integration option to hold the approval's supporting documents, and for the BPA service and its SMTP mail. It then swaps the template's SNC action groups for basic-connection BAPI calls and deploys the approval's UI5 applications so the task lands in My Inbox, with a Desktop Agent registered to run the unattended document-check and document-post automations.published 2025-01-28
Configuring SAP Cloud Integration for an IBP to S/4HANA (on prem / private cloud) integrationConfiguring SAP Cloud Integration for an IBP to S/4HANA (on prem / private cloud) integrationWalks through creating the two BTP destinations an Cloud Integration iflow needs for an IBP-to-S/4HANA integration: one of type RFC with a WebSocket RFC server host and port for the IBP tenant, and one of type RFC with the on-premise proxy type, a Cloud Connector location ID and a virtual host for the S/4HANA system. It then has the reader copy SAP's prebuilt IBP integration packages into the Design workspace and deploy every reusable iflow in them before a business iflow can call the S/4HANA extractor through SAP Connectivity service.SofianePebre, published 2025-08-27
Connect to Public Cloud API in Node.js via Authorisation CodeConnect to Public Cloud API in Node.js via Authorisation CodeThe authorisation code flow rather than client credentials, which is the harder half: a service key, an XSUAA instance bound to the CAP app, and a destination, with the author saying plainly that this was challenging and they hope it saves somebody the same time.Egan, published 2025-07-22
Consuming data from SAP Datasphere in SAP BTP CAP ApplicationsConsuming data from SAP Datasphere in SAP BTP CAP ApplicationsDatasphere as the source a CAP application reads from — the case for it being that Datasphere already unified the SAP and non-SAP data, so the application does not have to. From a real project.sudheer-tammana, published 2025-06-03
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
Developing Mobile Apps with SAP BuildDeveloping Mobile Apps with SAP BuildA tutorial that builds a cross-platform mobile app with the Mobile Development Kit on top of the CAP-based data service from the author's earlier posts, using the mobile Dev Space in SAP Business Application Studio to configure and deploy the app to SAP Mobile Services. It sets up the mobile destination against SAP Destination service two ways — reusing the BTP destination already created for the CAP service, or an Internet Destination with OAuth2 User Token Exchange and a manually retrieved client secret — and turns on Cross Context SSO so a token issued in the browser carries into the generic SAP Mobile Services Client app on the phone.published 2025-05-22
Establishing connectivity between a local CAP runtime and on-premise systemsEstablishing connectivity between a local CAP runtime and on-premise systemsReaching S/4HANA, an on-premise HANA or any HTTP service from a CAP process running on your laptop — the case where the connectivity proxy the platform provides is not there and the tunnel has to be arranged.vLeonkev, published 2025-10-15
Exposing SAP S4 Onprem data to external System || Odata Service || BTP || Destination-ConnectivityExposing SAP S4 Onprem data to external System || Odata Service || BTP || Destination-ConnectivityA walkthrough that wraps an IDOC-reprocessing function module in a RAP OData service on S/4HANA on-premise, then reaches it from a Python app on Cloud Foundry by looking the on-premise system up through the Destinations service and calling it through SAP Connectivity service proxies behind Cloud Connector. It walks through the destination and connectivity service keys, resolving the destination's URL and credentials, and the connectivity-service token and proxy call needed to reach the on-premise OData endpoint, noting the app must run on Cloud Foundry since destination and connectivity lookups do not work from a local machine.Ace_D, published 2025-07-24
Extending SAP Sales and Service Cloud V2 Using CAPExtending SAP Sales and Service Cloud V2 Using CAPAn extension target that does not run on BTP at all — Sales and Service Cloud V2 sits directly on hyperscalers — so the separation between core and extension is enforced rather than encouraged. That constraint is what makes the post worth reading.Quablab, published 2025-07-09
From REST to Datasphere: A CAP-based Integration ApproachFrom REST to Datasphere: A CAP-based Integration ApproachThe reverse direction and a second attempt: the authors had already written data into Datasphere with a small FastAPI service on the OPEN SQL schema, and this is what changed when they rebuilt it on CAP.christian_willi, published 2025-09-30
How to Call a Remote OData API from Your Local CAP Java ProjectHow to Call a Remote OData API from Your Local CAP Java ProjectThe Business Accelerator Hub sandbox called from a CAP Java project on a laptop, with a concrete finish line — a localhost URL that returns business partners. Everything needed to get there is listed, Maven and JDK versions included.Umezuki, published 2025-08-11
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
Part 2: Architecting SaaS Resilience Against S/4HANA VariancePart 2: Architecting SaaS Resilience Against S/4HANA VarianceThe unspoken problem it names is a good one: a multitenant SaaS application faces not one S/4HANA but every customer's, each at a different release with different extensions. What resilience means when the backend varies per tenant.michal_majer, published 2025-10-20
Secure Service Consumption Across HyperscalersSecure Service Consumption Across HyperscalersSAP's design for a workload on SAP BTP that calls Amazon Web Services or Google Cloud services with short-lived credentials instead of stored keys, which is the outbound side of authentication: the BTP application proving who it is to another cloud. On AWS it draws two paths, an ID token from Identity Authentication in Cloud Identity Services exchanged through AWS STS for an IAM role, or an X.509 certificate kept in SAP Destination service and presented to IAM Roles Anywhere; on Google Cloud only the token path, through Workload Identity Federation and an impersonated service account. It is drawn for those two hyperscalers only, and Microsoft Azure has no page in it.published 2025-05-14
Sending Emails from SAP CAP Applications with Any SMTP ProviderSending Emails from SAP CAP Applications with Any SMTP ProviderWalks through sending mail from a CAP application with no dedicated mail service: create an SMTP destination for a Gmail account in the SAP BTP cockpit, bind it to the Cloud Foundry app, and call the sap-cf-mailer npm package from a CAP service handler naming that destination. The SAP Destination service holds the SMTP host, port and app password so the handler code names only the destination, and the same handler sends plain text, an HTML body, or a message with a base64-encoded attachment.MaheshSirsat1708, published 2025-08-19
Set up the SAP Cloud Connector: Integrating On‑Premise Systems with Cloud ServicesSet up the SAP Cloud Connector: Integrating On‑Premise Systems with Cloud ServicesA step-by-step walkthrough of installing Cloud Connector, adding a subaccount, managing identity and trust certificates in STRUST, and mapping cloud-to-on-premise paths for an SAP HANA backend. It ends by creating a Destinations entry in SAP BTP with proxy type OnPremise and basic authentication, then testing it from SAP Business Application Studio.Thijn_Grilis, published 2025-06-12
A cross application Fiori APP to print Adobe FormsA cross application Fiori APP to print Adobe FormsWalks through building a custom Fiori app that turns an existing Adobe print form (purchase orders, billing documents) into a downloadable PDF: a function module calls the standard form-data-provider interface to render the form, a SEGW OData service streams the result through a media entity's GET_STREAM, and a parameterised CDS view feeds a Fiori elements list with a download link per document. Two custom Z-tables supply the name-value pairs the form template needs, which the author flags as a stopgap for values that could be derived at runtime instead.padchalingam, published 2025-07-22
Basic code's of ABAPBasic code's of ABAPNine standalone ABAP reports built around REUSE_ALV_GRID_DISPLAY and CL_SALV_TABLE, covering display, screen validation, spool creation, Excel upload and table maintenance without SM30. One report raises and catches a custom exception class with RAISE EXCEPTION and TRY/CATCH, the class-based mechanism error handling names for ABAP; another submits a job to spool, converts it to PDF with CONVERT_ABAPSPOOLJOB_2_PDF and exports a CL_SALV_TABLE result to Excel before mailing both, producing document output from spool rather than Form Builder.RakeshZore, published 2025-09-30
Generating Adobe Form Using RAP framework OData ServicesGenerating Adobe Form Using RAP framework OData ServicesModels a RAP root view entity and consumption view over a custom sales-order table, built with ABAP CDS, and exposes it through a service definition and an OData V2 UI service binding. A separate SEGW project implements GET_STREAM to call an Adobe Form driver class and stream the rendered PDF back as the response, with a computed link field added to the CDS view so the UI can open it. The PDF is generated in the backend and returned to the calling program rather than sent straight to a printer.Megastar, published 2025-03-18
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
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 Merge Two Separate Smart Forms into a Single PDF in SAPHow to Merge Two Separate Smart Forms into a Single PDF in SAPWalks through generating two separate Smart Forms as OTF, converting each to PDF with CONVERT_OTF, then combining them into one file with cl_rspo_pdf_merge before downloading the result to the frontend. The whole flow runs inside the ABAP system that holds the data, from SMARTFORMS-built forms to a single merged PDF on the local device.chandu_kumar_badukuri, published 2025-12-17
Merge multiple PDF forms into a single document for download or printing.Merge multiple PDF forms into a single document for download or printing.Faced with bundling several Adobe-Forms-generated PDFs into one file, where FP_JOB_OPEN could not handle the parameters a bundled FP_GET_PDF_TABLE output needed and the forms themselves could not be changed, the author merges the individual PDFs at runtime with the CL_RSPO_PDF_MERGE class instead. Walks through opening the spool job with FP_JOB_OPEN, generating each form via its FP_FUNCTION_MODULE_NAME-resolved function module, adding each result's xstring to the merger with add_document, then calling merge_documents and converting the result for GUI_DOWNLOAD or printing.MiljanDjuric, published 2025-06-17
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
Beginners Guide to Advanced Event MeshBeginners Guide to Advanced Event MeshA scenario-by-scenario walkthrough of Advanced Event Mesh, run through Cloud Integration iFlows: publishing and consuming queue messages, dead message queue setup with retry counts and acknowledgment modes, direct messages, durable topic endpoints and selectors, time-to-live, REST Delivery Points, replay by replication group message ID, parallel consumers with partition keys, and the request-reply pattern. Each scenario is built and verified step by step against a Solace trial account standing in for AEM.PriyankaChak, published 2025-07-24
Complete Guide: Setting Up CAP Plugin for Advanced Event Mesh with OAuth AuthenticationComplete Guide: Setting Up CAP Plugin for Advanced Event Mesh with OAuth AuthenticationWritten because the plugin's own documentation stops short of the prerequisites and the author had to assemble them from three other sources and a help chapter. It joins them: the OIDC application in Identity Authentication, the OAuth profile in Broker Manager, the token checked before anything is wired, and only then the plugin. The author says plainly it came out of trial and error and was going to be a README.rpagni, published 2025-11-10
Designing Event-Driven ApplicationsDesigning Event-Driven ApplicationsSAP's guidance for building applications on event-driven architecture with BTP services. It sets out a two-part strategy: SAP Cloud Application Event Hub for events between SAP cloud applications and BTP, and the SAP Integration Suite family for dedicated event brokers in hybrid landscapes. Its sub-pages then cover EDA patterns, design considerations and AWS and Azure IoT integration. The framing is integration between systems; the in-process outbox and queueing inside one CAP service are not its subject.published 2025-10-10
Enhancing SAP Business Events with Custom Payload Fields using RAPEnhancing SAP Business Events with Custom Payload Fields using RAPWalks through enriching an outbound Business Partner event for Event Mesh that by default carries only the partner ID: a derived RAP business event, raised from a behaviour definition with RAISE ENTITY EVENT and bound through SWE2 event linkage to a receiver function module, adds first and last name to the payload. The custom event is defined on a root view entity over BUT000 and verified in /IWXBE/EVENT_MONITOR, where the enriched JSON payload shows the extra fields reaching subscribers without an additional callback to the source system.BramhaniG, published 2025-10-27
Event enabling SAP Data Replication Framework with Advanced Event Mesh & AIFAEMEvent enabling SAP Data Replication Framework with Advanced Event Mesh & AIFAEMWalks through connecting SAP's ABAP-side Data Replication Framework to Advanced Event Mesh by way of the AIFAEM add-on, bypassing SAP Cloud Integration: a custom ABAP class maps business-partner replication data into AIF, which publishes it to AEM in CloudEvents format. The author's own disclaimer favours the standard pattern instead — a Standard DRF Replication through an Integration Suite iFlow with the AEM adapter — and presents this direct, custom-ABAP route only as a documented alternative.AlexPfeil, published 2025-08-21
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
Getting Started with SAP Event Mesh: Concepts, Setup, and Best PracticesGetting Started with SAP Event Mesh: Concepts, Setup, and Best PracticesExplains SAP Event Mesh as SAP's managed messaging service and works through its core concepts: queues versus topics, publish-subscribe versus point-to-point delivery, and direct versus guaranteed messaging. A hands-on half wires a Solace event broker to SAP Cloud Platform Integration, with two iFlows publishing to and consuming from a queue and a topic over AMQP and HTTP REST.vvinay_kumar, published 2025-10-15
How to Perform Initial Loads from S/4HANA to Advanced Event Mesh with Odata PollHow to Perform Initial Loads from S/4HANA to Advanced Event Mesh with Odata PollWalks through building a Cloud Integration flow that polls the S/4HANA Business Partner OData API on a timer, splits the response into individual records, and publishes each as an event to Advanced Event Mesh through its adapter, with the topic set dynamically from a grouping property. Selects fields and expands associations with $select/$expand against an EDMX from the API Business Hub, and works around the OData V2 adapter's lack of JSON support by falling back to the HTTP adapter with an XML-to-JSON converter. Flags the trade-off: the pattern needs no backend change beyond activating the API, but the polled payload has to stay aligned with whatever event format the ERP pushes on change.AlexPfeil, published 2025-04-04
How to subscribe or fetch data from solace to CPI using AEM Adapter : part-5How to subscribe or fetch data from solace to CPI using AEM Adapter : part-5Closes a series on event-driven architecture with Solace by detailing the subscriber side of an iFlow in Cloud Integration: an advanced event mesh adapter feeds an exception subprocess, and a Groovy step classifies each failure as recoverable, left to Solace's own retry, or non-recoverable, answered with a custom property that tells Solace to stop retrying before the message reaches an escalation layer. The escalation layer names email, ServiceNow and Loggly as destinations without explaining any of them.pavanKolla, published 2025-08-03
How to use a CAP application to manage DMQ messages on SAP Advanced Event MeshHow to use a CAP application to manage DMQ messages on SAP Advanced Event MeshA CAP application built for the failure path rather than the happy one. Messages that land in a Dead Message Queue are deleted for good when their TTL expires, so this pulls them out first and holds them in quarantine, where a Fiori elements UI lets someone inspect a payload, correct it and reinject it. An operations tool, and a rare write-up of what to do after delivery has already failed.stefan-keuker, published 2025-12-31
How to use a CAP application to manage DMQ messages on SAP Advanced Event Mesh
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects Runnable code.
Implementing Event-Driven Architecture in CAP Java using SAP Event MeshImplementing Event-Driven Architecture in CAP Java using SAP Event MeshPublish and consume from the Java stack, which most of the Event Mesh writing on the community does not cover. The MTA declaration and the credentials come first, then the emit and the handler, then the two sections that make it worth keeping: error handling with retries, and securing the events with OAuth.Soumya-Pirlamarla, published 2025-11-26
Implementing Event-Driven Architecture in CAP Java using SAP Event Mesh
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects A recipe.
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
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 EHS Public Cloud: Extending Your Existing Landscape Side-by-Side - Guidebook (Part 4)SAP EHS Public Cloud: Extending Your Existing Landscape Side-by-Side - Guidebook (Part 4)Two custom iFlows in SAP Integration Suite subscribe over AMQP to Event Mesh queues, triggered by SAP S/4HANA On-Premise's Enterprise Event Enablement channels publishing Equipment and Functional Location changes; each flow calls the on-premise OData API, maps the result, and pushes it into SAP S/4HANA Cloud Public Edition through the SAP_COM_0395 communication scenario. The synchronized Plant Maintenance data feeds SAP EHS Public Cloud's risk management, incident management and emissions management processes, which otherwise have no asset master data of their own.duynguyendeloitte, published 2025-11-28
SAP Event Mesh Architecture PatternsSAP Event Mesh Architecture PatternsNine architectural patterns for wiring producers and consumers through queues, topics and webhooks: single-subscriber point-to-point delivery, fan-out to multiple subscribers, filtering several event types into one subscriber, domain-scoped topic subscriptions, an aggregator that bundles related events, a multi-stage enrichment pipeline, scatter-gather over parallel requests, a dead-letter queue for poison messages, and pushing events to an HTTP webhook. Each pattern states its motivation, a pros-and-cons pair, when to use it and example queue or topic names.vbalko-claimate, published 2025-05-16
Triggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) AppsTriggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) AppsThe two routes out of a CAP application into a process, side by side: a destination with OAuth2ClientCredentials, the same destination with principal propagation, and Event Mesh with a CloudEvents payload. Written before @cap-js/process existed, so it is the record of what the plugin now does for you — useful when the plugin does not fit, and useful for reading what it is actually doing underneath.ATheobaldt, published 2024-12-09
Triggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) Apps
Workflow integration has changed twice since this was published, most recently in @cap-js/n8n 0.0.1, 2026-08-27. Affects A recipe, Runnable code.
Using Apache Kafka for messaging in the SAP Cloud Application Programming Model (CAP) – Part 1/2Using Apache Kafka for messaging in the SAP Cloud Application Programming Model (CAP) – Part 1/2The theory half of a pair introducing cds-kafka: what the plugin is for and what it can do, with event-driven architecture set up as the reason rather than assumed. Nothing is deployed here — the running application is part two — so this is the post to read if the question is whether Kafka belongs in the picture at all rather than how to wire it.published 2025-01-02
Using Apache Kafka for messaging in the SAP Cloud Application Programming Model (CAP) – Part 2/2Using Apache Kafka for messaging in the SAP Cloud Application Programming Model (CAP) – Part 2/2The practical half: concrete use cases for cds-kafka, running locally and on BTP. It opens by placing the plugin among SAP's own event-driven offerings rather than beside them, which is the part that decides whether you reach for this or for Event Mesh — a comparison a plugin's own README rarely makes about itself.published 2025-01-13