How To Fix SWP120 - Error at end of a FOREACH loop

SAP Error Message - Details

• Message type: E = Error

• Message class: SWP - WFM: Messages

• Message number: 120

• Message text: Error at end of a FOREACH loop

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWP120 - Error at end of a FOREACH loop ?

  The SAP error message SWP120, which indicates "Error at end of a FOREACH loop," typically occurs in the context of ABAP programming when there is an issue with the syntax or logic of a FOREACH loop. This error can arise due to various reasons, such as incorrect handling of internal tables, improper loop termination, or issues with the data being processed.
  Causes:
  
  Incorrect Loop Syntax: The FOREACH loop may not be properly structured, leading to syntax errors.
  Empty Internal Table: If the internal table being processed is empty, it may lead to unexpected behavior.
  Data Type Mismatch: The data types of the fields being accessed within the loop may not match the expected types.
  Modification of Internal Table: If the internal table is modified (e.g., entries are added or deleted) while iterating over it, it can lead to inconsistencies.
  End of Loop Handling: There may be issues with how the end of the loop is handled, such as missing ENDLOOP statements or incorrect exit conditions.
  
  Solutions:
  
  
  Check Syntax: Review the syntax of the FOREACH loop to ensure it is correctly structured. Ensure that all necessary keywords are included and properly placed.
  Example of a correct FOREACH loop:
  LOOP AT it_table INTO DATA(ls_row).
      " Process each row
  ENDLOOP.
  
  
  Validate Internal Table: Ensure that the internal table being processed is not empty before entering the loop. You can use a check like:
  IF it_table IS NOT INITIAL.
      LOOP AT it_table INTO DATA(ls_row).
          " Process each row
      ENDLOOP.
  ENDIF.
  
  
  Check Data Types: Ensure that the data types of the fields being accessed within the loop match the expected types. Use appropriate data declarations.
  
  
  Avoid Modifications During Loop: If you need to modify the internal table, consider collecting the changes in a separate table and applying them after the loop has completed.
  
  
  Properly Handle Loop Termination: Ensure that the loop is properly terminated with an ENDLOOP statement and that there are no logical errors that could cause the loop to exit prematurely.
  
  
  Related Information:
  
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. This can help pinpoint the exact cause of the issue.
  Documentation: Refer to the SAP Help Portal or ABAP documentation for detailed information on the FOREACH loop and best practices for handling internal tables.
  Community Forums: Consider checking SAP community forums or Stack Overflow for similar issues and solutions shared by other developers.
  
  By addressing the above points, you should be able to resolve the SWP120 error and ensure that your FOREACH loop functions correctly.