Systems:

PI 7.3, 7.1, 7.0

ECC 6.0, ECC 5.0, Enterprise 47, R/3 46c, R/3 4.5b, R/3 4.0, R/3 3.1h

CRM 6.0, 5.2, 5.0, 4.0, 2.0

Platforms:

ABAP, ABAP OO

Enhancements:

Explicit and Implicit Enhancements, EEWB, BDT, BAdI, BTE, Substitution and Validations, User-Exits

Interfaces:

BDoc, ALE, IDoc, RFC, BAPI

Forms:

Adobe Forms, Smart Forms, SAPscript

Data Migration:

LSMW, BDC

Process Orchestration:

BPM, Workflow