If function group not exist, create new function group. To create the function module, the function group should already exist first. In the example, we are triggering the exception when the input2 is ZERO in the function module. Let us discuss function module creation process in ABAP programming with a simple example. The function module creation process involves the below steps. Exceptions - Specifies exceptions in Function Modules.Tables - Specifies internal tables acts as importing and exporting parameters.Changing - Specifies the parameters act as importing and exporting parameters to a Function Module.Export - Output parameters of a Function Module.Import - Input parameters of a Function Module.Function modules support exception handling to handle any errors when the function module is running. Function modules plays significant role in updating the databases.įunction modules plays a key role in remote function calls (RFC) in between SAP R/3 Systems or between an SAP R/3 System and a non SAP system. The function group acts as a container for function modules that would logically belong together. SAP R/3 system contains wide range of predefined function modules that can be called from any ABAP program.Įvery function module is a part of function group. Otherwise a function module is preferred.
HOW TO CALL WORKFLOW FROM ABAP PROGRAM SAP CODE
If the source code is only used within the same program, then use a Subroutine.
Function modules can execute independently. Function modules are stored in central library.įunction modules available to the entire system. Function modules are sub programs that contains set of reusable source code statements with importing, exporting parameters and exceptions.
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