ABAP Cloud Syntax Cheatsheet: What is Forbidden vs. Allowed
ABAP Cloud (Language Version 5) strictly enforces upgrade stability. Here is the direct mapping from classic procedural constructs to cloud-compliant patterns:
| Classic Procedural Construct (Forbidden) | Reason for Ban | Modern ABAP Cloud Replacement |
|---|---|---|
SELECT * FROM vbak |
Direct DB access bypasses authorization & locks | SELECT FROM I_SalesOrderBasic (Released CDS Entity) |
UPDATE mara SET ... |
Direct DB modification breaks standard consistency | RAP Operations (MODIFY ENTITIES) or Released API |
CALL FUNCTION 'BAPI_...' |
Procedural function module without C1 contract | Released Business Object Interface / Tier 2 Wrapper |
TABLES: mara. |
Global unmanaged memory state | Explicit local typed data definitions (DATA(...)) |
MOVE-CORRESPONDING (classic) |
Implicit, runtime error-prone field mapping | CORRESPONDING #( ... ) with MAPPING / EXCEPT |
FORM ... ENDFORM |
Subroutines lack OOP encapsulation and contracts | Methods in Classes (CLASS ... METHOD) |
CALL SCREEN ... |
Dynpro screens cannot run in headless/Fiori cloud | SAP Fiori Elements backed by RAP / OData V4 |
SUBMIT rep AND RETURN |
Batch execution breaks cloud sandbox isolation | Background Job Scheduling API (cl_apj_rt_api) |
EXPORT/IMPORT to MEMORY |
Global unmanaged memory leaks | Database buffer or Singleton Service Classes |
Full code examples & Retina diagrams available at: https://andreaperrelli.gumroad.com/
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