Migration & Transformation
What is Custom Code Migration?
The analysis and adaptation of custom ABAP code for S/4HANA compatibility using ATC checks and usage data.
The Fiori Custom Code Migration app or remote ATC checks flag issues such as obsolete tables and field length extensions. Quick fixes in ADT can automate some changes. Adapted code needs unit and regression testing.
Related terms
ABAP Test Cockpit
SAP's framework for running static checks on ABAP code, including syntax, performance, security, and S/4HANA readiness.
Usage Procedure Logging
Logging of executed ABAP procedures to identify which custom code is actually used, with SCMON as the lightweight alternative.
Custom Code
Customer-developed ABAP objects, typically in the Z, Y, or registered namespace, extending or changing SAP behavior.
Compatibility View
A CDS-based view that replaces an obsolete ECC table name in S/4HANA so legacy SELECT statements still return data.
More in Migration & Transformation
Planning an S/4HANA move?
Read the field guides on testing an ECC to S/4HANA migration and grab the free template library.