{"ref":"content:clean-core","page":"/content/clean-core","json":"/content/clean-core.json","generated":"2026-10-26","drafted_with_ai":true,"entity":{"id":"clean-core","title":"Clean Core清洁核心概况介绍","url":"https://community.sap.com/t5/technology-blog-posts-by-sap/clean-core%E6%B8%85%E6%B4%81%E6%A0%B8%E5%BF%83%E6%A6%82%E5%86%B5%E4%BB%8B%E7%BB%8D/ba-p/14263870","content_type":"blog","published_on":"source:sap-community","explains":["capability:abap-extensibility"],"summary":"Explains Clean Core as SAP's architecture methodology for decoupling custom code from standard code, and walks through the A-D grading SAP uses for a single extension's cleanliness: D for direct modification of standard tables, programs, classes or functions, or disallowed patterns such as implicit enhancements; C for internally developed functions calling unreleased APIs; B for using only SAP's classic or released APIs (BAPI, ALV Grid, BAdI); A for side-by-side extensions reached only through released interfaces onto the SAP Build extension suite. It lays out a six-step roadmap for reaching Clean Core — inventorying existing extensions, setting a reduction target, surveying SAP's extension routes (SAP GUI SE80, Fiori custom fields and logic, BTP high/low-code, workflow/RPA), writing a decision tree, splitting new development from legacy migration, and reviewing periodically — while noting that in-app development is not inherently unclean and that real decisions should weigh ROI rather than follow the theory absolutely.","short":"Chinese overview of Clean Core and its A-D extension grading","author":"ArthurYang","published":"2025-11-10","provenance":{"discovered_via":[{"source":"source:sap-community","channel":"btp-tag"}],"first_seen":"2026-10-02"},"drafted_with_ai":true},"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":"good","evidence":"published 11 months ago"}],"compatibility":[{"label":"Version","tier":"unknown","evidence":"no version declared"},{"label":"Moved since?","tier":"good","evidence":"no recorded change after 2025-11-10"},{"label":"Findings","tier":"good","evidence":"none flagged"}],"reach":[{"value":1134,"unit":"views"},{"value":0,"unit":"comments"},{"value":0,"unit":"likes"}]},"signals":{"views":1134,"likes":0,"comments":0,"metrics_at":"2026-10-25"},"series":null,"edges":{"authors":[]}}