01 What happened
SAP now offers a changelog for SAP objects to help developers verify clean core Level C compliance for custom extensions.
02 Key details
- The changelog covers deletions introduced during upgrades from SAP S/4HANA 2023 to SAP S/4HANA 2025 for classes, interfaces, function modules, and CDS views.
- Integration requires implementing SAP Note 3758771 and uploading changelog.zip via program SYCM_API_CLASSIFICATION_MANAGR into the ABAP Test Cockpit system.
- Changelog functionality is not yet available in ATC on SAP BTP; users must upload the file to a local S/4HANA 2023 system instead.
- SAP recommends including the changelog in ATC checks during regular development and at the latest before system upgrade to estimate risk.
03 Why it matters
It enables early detection of incompatible API usage in custom code before upgrades, reducing risk of malfunction.
04 Who it matters to
ABAP developers and S/4HANA conversion project managers.
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