ABAP Custom Code Analysis
Decouple your legacy systems. Analyze unstructured ABAP code and automatically transform it into a future-proof side-by-side BTP architecture.
Why analyze custom ABAP code before an S/4HANA upgrade?
Legacy SAP systems often have tight syntax coupling to standard tables (e.g. VBAK, BSEG, LIKP) or unreleased function modules. During an S/4HANA migration, database structures change, which breaks custom programs. Automated custom code analysis detects these dependencies and maps direct database reads to modern, cloud-released OData APIs and BTP CAP or RAP architectures, preventing upgrade blockages.
The Challenge: Custom Code as an Upgrade Blocker
In SAP ERP systems that have grown over decades, there are often thousands of lines of custom ABAP developments. Many of these directly access standard tables or unreleased SAP function modules. During an upgrade to SAP S/4HANA, this tight coupling leads to system breakages, high modernization costs, and months of testing phases.
Manual ABAP custom code analysis and subsequent refactoring is extremely time-consuming. This is exactly where the automated platform of Clean-Core.io comes in: Our tool reads your legacy ABAP code, parses syntax trees, and analyzes data flows to automatically isolate dependencies.
How the Automated Pipeline Works
Static AST Parsing
The ABAP source code is broken down into abstract syntax trees (AST). This allows us to detect control flows, database operations (SELECT, INSERT, UPDATE), and external calls.
SAP API Hub Alignment
Detected table accesses are matched against the official API Business Hub database. The system automatically searches for released OData or REST interfaces (e.g., Business Partner, Sales Order APIs) and suggests them as replacements.
Target Architecture Routing
Based on the determined degree of coupling, the router decides whether the code should be rewritten in-app in ABAP Cloud (RAP) or decoupled as a side-by-side service on SAP BTP (Node.js CAP).
Benefits at a glance
- 80% faster code assessment
- Automatic OData API mapping
- SAP Clean Core guideline compliant
- Reduces technical upgrade debt
Frequently Asked Questions (FAQ)
Why do classic S/4HANA upgrades fail?
Many SAP systems exhibit tight coupling between custom ABAP code and standard SAP tables. During upgrades, these underlying data structures change, leading to system errors and massive testing efforts.
How does automated ABAP analysis help?
The analysis isolates modifications in the ABAP code and automatically maps direct access to tables like VBAK, LIKP, or BSEG to released standard OData/REST APIs in the SAP API Business Hub, decoupling the system.