CALL FUNCTION

Reference

Syntax

CALL FUNCTION func [ {IN UPDATE TASK}
                   | { [ {STARTING NEW TASK task}
                       | {IN BACKGROUND TASK} ]
                        [DESTINATION dest] }
                   | {IN BACKGROUND UNIT} ]
                   { [EXPORTING  p1 = a1 p2 = a2 ...]
                     [IMPORTING  p1 = a1 p2 = a2 ...]
                     [CHANGING   p1 = a1 p2 = a2 ...]
                     [TABLES     t1 = itab1 t2 = itab2 ...]
                     [EXCEPTIONS [exc1 = n1 exc2 = n2 ...]
                                 [error_message = n_error]
                                 [system_failure = ns
                                   [MESSAGE smess]]
                                 [communication_failure = nc
                                   [MESSAGE cmess]]
                                 [OTHERS = n_others]] }
                   | { [PARAMETER-TABLE ptab]
                       [EXCEPTION-TABLE etab] }
                   [{PERFORMING subr}|{CALLING meth} ON END OF TASK].

Effect

Calls the function module specified in func.

Additions

• IN UPDATE TASK
  Registers an update function module.
  
  
• DESTINATION, STARTING NEW TASK, IN BACKGROUND TASK|UNIT
  Synchronous, asynchronous or transactional RFC.
  
  
• EXPORTING p1 = a1 p2 = a2 ...
  Exports actual parameters a1, a2, ... to input parameters p1, p2, ...
  
  
• IMPORTING p1 = a1 p2 = a2 ...
  Imports output parameters p1, p2, ... in actual parameters a1, a2, ...
  
  
• CHANGING p1 = a1 p2 = a2 ...
  Assigns actual parameters a1, a2, ... to input/output parameters p1, p2, ...
  
  
• TABLES t1 = itab1 t2 = itab2 ...
  Assigns internal tables itab1, itab2, ... to table parameters t1, t2, ...
  
  
• EXCEPTIONS
  Allows the handling of not class-based exceptions:
  
  exc1 = n1 exc2 = n2 ... - Assigns numbers n1, n2, ... for the return value sy-subrc to exceptions exc1, exc2, ...
  
  ERROR_MESSAGE = n_error - Handling of messages via the specific exception error_message.
  
  system_failure, communication_failure - Handling of specific RFC exceptions with transfer of the first line of the short dump after smess and cmess respectively.
  
  OTHERS = n_others - Assigns a number n_others for the return value sy-subrc to all exceptions not specified explicitly.
  
  
• PARAMETER-TABLE ptab
  Assigns dynamic actual parameters to formal parameters using an internal
  table ptab of the type ABAP_FUNC_PARMBIND_TAB.
  
  
• EXCEPTION-TABLE etab
  Assigns dynamic return values to not class-based exceptions using an
  internal table etab of the type ABAP_FUNC_EXCPBIND_TAB.
  
  
• {PERFORMING subr}|{CALLING meth} ON END OF TASK
  Calls the subroutine subr or the method meth when terminating an asynchronous RFC.