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Function module call
Learn Function module call in ABAP with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.
Function module call is an atomic ABAP topic inside Procedures & OO. The example below uses the actual construct named by the lesson rather than a generic placeholder.
Focus on what Function module call changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.
Topic-specific example
CALL FUNCTION 'POPUP_TO_INFORM' EXPORTING titel = 'Demo' txt1 = 'Hello' txt2 = 'ABAP'.
Verify name resolution and visibility. The example should fail predictably if the dependency, namespace, or exported symbol is unavailable.