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Build and dev-server toolingSAP and community
How to consume UI5 custom libraries in BAS or VS CodeHow to consume UI5 custom libraries in BAS or VS CodeConsuming a custom UI5 library from a UI5 application locally, using yarn workspaces to resolve the dependency instead of adjusting the project before every deploy. The post is honest about its own history: the author had asked the question on SAP Community, found a workaround that needed a pre-deploy edit, and only later learned the workspace approach that removes it. Generator-based setup throughout, and 2021-vintage — yarn workspaces, generator-ui5-library and generator-easy-ui5.published 2021-04-06
UI Composition with Application Frontend ServiceUI Composition with Application Frontend ServiceWhy shared UI code is hard, and what Application Frontend changes about it. The piece first lays out the three usual answers and what each costs — copying files at development time and repatching every consumer, publishing an npm package and rebuilding every consumer, or hosting the code separately and paying for it in CORS and session handling, or in an extra network hop through a server-side proxy. It then shows a fourth that only this service can do: runtime server-side composition without the hop, configured through routes in the consuming application's xs-app.json, across three cases — a reusable application embedded in a consumer, and two further composition shapes. Read alongside the generator, which scaffolds the mta.yaml, xs-app.json and zipper configuration this model needs.Vadim Tomnikov, published 2026-05-18
Editor supportSAP only
Extending SAP Autonomous SuiteExtending SAP Autonomous SuiteExtensibility across SAP Autonomous Suite: AI-enabled development in SAP Build solutions, the ABAP Cloud model among them, as the way extensions are designed, generated and deployed, and a direction for making extensions ready for agentic AI. The abstract names the suite, SAP Build and the ABAP Cloud model and no single feature, so the edges are to Extensibility, the concern, and to SAP Build Code, the SAP Build solution held here in which Joule generates and deploys development; which other SAP Build solutions the session shows is not stated. A TechEd 2026 session (Tuesday 27 October, Berlin), presented by Alexander Rother and Khaled MUSILHY, written here from SAP's abstract; the recording is not yet published.
LintingSAP and community
Before You Upgrade S/4HANA: Static UI5 Checks with MCPBefore You Upgrade S/4HANA: Static UI5 Checks with MCPA UI5 version upgrade checked against one app by pairing two MCP servers: the ui5_version_diff tool added to mcp-sap-docs, which reads a bundle from ui5-lib-diff downloaded once at setup and filters it by version range, change type, library or query text, and @ui5/mcp-server, whose get_project_info, get_version_info, run_ui5_linter and run_manifest_validation say what the app uses and what fails. Run with a ui5-versions-upgrade.md skill on the legacy app from From SEGW and Legacy UI5 to RAP with ARC-1, from SAPUI5 1.84.59 to 1.147.2, the diff range held 985 deprecations and 961 What's New entries, and the linting and manifest validation narrowed that to findings in this app, among them jQuery.sap.require, synchronous bootstrap, the sap_belize theme, sap.m.MessagePage and an old manifest _version. The checks read the source in a local checkout and never the deployed app, so the report is a first pass: a changelog entry is not proof that a workaround can be deleted, and the app still has to be run and tested.published 2026-05-20
TypeScript supportSAP and community
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.
debug a CAP app with UI5 TypeScript UI component with VS Codedebug a CAP app with UI5 TypeScript UI component with VS CodeDebugging both runtimes at once — the CAP server and a UI5 component written in TypeScript, the latter stepped through in its own sources rather than in the transpiled output. Written when TypeScript for UI5 had just become possible, and the combination it sets up is the one CAP's app folder invites.published 2021-11-16
TypeScript Sheriff: How can I use TypeScript in the SAP ecosystem? (Part 2 of 3)TypeScript Sheriff: How can I use TypeScript in the SAP ecosystem? (Part 2 of 3)The middle part of three, and the one about SAP: where TypeScript is supported across a side-by-side extension on BTP, as of July 2023. It says the SAP Cloud SDK already generates OData clients as .ts files and UI5 ships types for its controls and modules, the ground of TypeScript support in UI5, while CAP offers standard types and the new @cap-js/cds-typer generates types for a service, which is typing, with the caveat that running cds-ts commands could overwrite what cds-typer generated.MikeDoyle, published 2023-07-05
UI5 testingSAP and community
Create Automated System Tests for SAP Cloud Application Programming Model ProjectsCreate Automated System Tests for SAP Cloud Application Programming Model ProjectsEnd-to-end tests driving the UI with wdi5, run in the pipeline — the layer above cds.test, which stops at the service boundary.SAP