CALL - Call a system function

Basic form 6

CALL cfunc.

Addition

... ID id1 FIELD f1 ... ID idn FIELD fn

Effect

Calls the system function cfunc . The relevant function must exist in the file sapactab.h. If you change or recreate a function, you have to compile and link the SAP kernel again. For this, you need the C source code files.
Normally, external programs should be called via RFC with CALL FUNCTION ... DESTINATION .

Addition

... ID id1 FIELD f1 ... ID idn FIELD fn

Effect

Passes fields to the called program by reference. With " ID id1 ", you specify the name of a formal parameter, and with " FIELD f1 " the relevant field from the ABAP/4 program. If a formal parameter expects an internal table, the latter is passed in the form " FIELD tab[] ".

Example

DATA RESULT(8).
CALL 'MULTIPLY' ID 'P1'  FIELD '9999'
                ID 'P2'  FIELD '9999'
                ID 'RES' FIELD RESULT.

Note

Runtime errors

CALL_C_FUNCTION_NOT_FOUND : Specified system function is unknown.

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