{"ref":"content:custom-functions-in-odata-v4-in-cap","page":"/content/custom-functions-in-odata-v4-in-cap","json":"/content/custom-functions-in-odata-v4-in-cap.json","generated":"2026-10-26","drafted_with_ai":true,"entity":{"id":"custom-functions-in-odata-v4-in-cap","title":"Custom Functions in OData V4 – SAP Cloud Application Programming Model","url":"https://community.sap.com/t5/technology-blog-posts-by-sap/custom-functions-in-odata-v4-sap-cloud-application-programming-model/ba-p/13505339","content_type":"blog","explains":[{"ref":"capability:odata","applies_to":{"ecosystems":["cap"]}}],"summary":"Functions rather than actions, and the distinction is where it starts: a function must return data and must never change any, so it is the read-only half of custom operations. Then how to declare and implement one on a CAP service.","short":"Declaring and implementing OData V4 functions on a CAP service","author":"Roopa_N","published":"2021-04-28","sources":[{"url":"https://community.sap.com/t5/technology-blog-posts-by-sap/custom-functions-in-odata-v4-sap-cloud-application-programming-model/ba-p/13505339","title":"Custom Functions in OData V4 – SAP Cloud Application Programming Model — SAP Community","checked":"2026-09-08"}],"provenance":{"discovered_via":[{"source":"source:sap-community","channel":"cap-tag"}],"first_seen":"2026-09-08"},"drafted_with_ai":true,"published_on":"source:sap-community","history":[{"date":"2026-10-17","field":"explains","from":null,"to":"applies_to on capability:odata (cap)","reason":"Door scope proposed from the title and summary, so a door page lists the piece only where it holds (docs/concepts/content-on-doors.md)."}]},"readings":{"liveness":[{"label":"Checked against the source","tier":"unknown","evidence":"nobody has checked it"},{"label":"Source reachable","tier":"unknown","evidence":"not crawled"},{"label":"Age","tier":"poor","evidence":"published 66 months ago"}],"compatibility":[{"label":"Version","tier":"unknown","evidence":"no version declared"},{"label":"Moved since?","tier":"poor","evidence":"@cap-js-community/odata-v2-adapter 1.10.0, 2023-04"},{"label":"Findings","tier":"good","evidence":"none flagged"}],"reach":[{"value":6233,"unit":"views"},{"value":0,"unit":"comments"},{"value":17,"unit":"likes"}]},"signals":{"views":6233,"likes":17,"comments":0,"metrics_at":"2026-10-25"},"series":null,"edges":{"authors":[]}}