How To Fix 37135 - Loop contains an illegal element. Operation not performed

37135 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 135

• Message text: Loop contains an illegal element. Operation not performed

What causes this issue?

Areas for subscreens must always be defined in a blank part of the
screen, not in a loop line.

How to fix this error?

Avoid overlapping areas and loop lines.

Error message extract from SAP system. Copyright SAP SE.

37135 - Details

• The SAP error message "37135 Loop contains an illegal element. Operation not performed" typically occurs in the context of SAP workflows or when dealing with certain data structures in ABAP programming. This error indicates that there is an issue with the structure of a loop in your code or workflow definition, where an illegal or unexpected element has been encountered.
  
  Cause:
  
  Invalid Loop Structure: The loop may be trying to iterate over a data structure that contains elements that are not valid for the operation being performed.
  Data Integrity Issues: The data being processed may have inconsistencies or invalid entries that lead to the loop encountering unexpected elements.
  Workflow Configuration: If this error occurs in a workflow, it may be due to incorrect configuration or an invalid path in the workflow definition.
  Programming Errors: In ABAP code, it could be due to incorrect handling of internal tables or data structures.
  
  
  Solution:
  
  Check Loop Logic: Review the loop