How To Fix 37788 - Fixed step loops not allowed next to variable ones (group not moved)

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 788

• Message text: Fixed step loops not allowed next to variable ones (group not moved)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 37788 - Fixed step loops not allowed next to variable ones (group not moved) ?

  The SAP error message 37788, "Fixed step loops not allowed next to variable ones (group not moved)," typically occurs in the context of SAP ABAP programming, particularly when dealing with loops in the context of internal tables or data processing.
  Cause:
  This error arises when you have a fixed step loop (e.g., a loop that iterates a specific number of times) placed next to a variable step loop (e.g., a loop that iterates based on the size of an internal table or a dynamic condition). In SAP, the system does not allow fixed step loops to be adjacent to variable step loops because it can lead to ambiguity in the execution flow and potential performance issues.
  Solution:
  To resolve this error, you need to ensure that fixed step loops and variable step loops are not placed next to each other. Here are some steps you can take:
  
  
  Reorganize Your Code: Separate the fixed step loops from the variable step loops. You can do this by restructuring your code to ensure that they are not adjacent.
  
  
  Use Nested Loops: If you need to use both types of loops, consider nesting one loop inside the other instead of placing them side by side.
  
  
  Review Loop Logic: Ensure that the logic of your loops is correct and that you are using the appropriate type of loop for your specific use case.
  
  
  Check Loop Conditions: Make sure that the conditions for your loops are clearly defined and do not conflict with each other.
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for best practices on loop constructs and performance considerations.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Debugging: Use the ABAP debugger to step through your code and identify where the error is occurring, which can help you understand the context better.
  
  By following these guidelines, you should be able to resolve the error message 37788 and improve the structure of your ABAP code.