The SAP ATC (ABAP Test Cockpit) check is a crucial step in the SAP HANA upgrade process, ensuring that existing ABAP custom code is optimized and compatible with the SAP HANA database and SAP S/4HANA. Since SAP HANA is an in-memory, columnar database, traditional ABAP coding techniques—especially those relying on sequential processing, database-dependent logic, and obsolete statements—may lead to performance degradation or errors post-upgrade.
Key Objectives of SAP ATC Check in HANA Upgrade
- Detect HANA-Optimized Code Issues
- Identifies obsolete SQL queries, database hints, and redundant data fetching techniques that may slow down execution in SAP HANA.
- Highlights performance bottlenecks related to SELECT loops, nested selects, and implicit sorting.
- Analyze Database Dependencies
- Flags code that relies on traditional row-based databases, which might not perform efficiently on HANA’s columnar storage.
- Identifies native SQL statements or database-specific functions that may not be supported in HANA.
- Check for S/4HANA Simplifications
- Detects obsolete transactions, table structures (e.g., replacement of classical tables like BSEG with ACDOCA), and missing mandatory fields.
- Ensures compatibility with Business Partner (BP) model, which replaces customer/vendor master records.
- ABAP Custom Code Adaptation
- Identifies unused or redundant custom code that should be cleaned up before migration.
- Highlights modifications to standard SAP objects that may conflict with new S/4HANA versions.
