How To Fix EM411 - Maximum nesting depth reached

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 411

• Message text: Maximum nesting depth reached

What causes this issue?

You tried to create a new question in a lower nesting depth, however,
the maximum nesting depth is 4.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

Check the structure of the question catalog.
If necessary, rearrange the questions.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EM411 - Maximum nesting depth reached ?

  The SAP error message EM411 "Maximum nesting depth reached" typically occurs when there is excessive recursion or deep nesting of function calls or data structures in an ABAP program. This can happen in various scenarios, such as when a function calls itself directly or indirectly too many times, or when there are deeply nested loops or structures.
  Causes:
  
  Recursive Function Calls: A function or method is calling itself without a proper exit condition, leading to infinite recursion.
  Deeply Nested Loops: Excessive nesting of loops or function calls can exceed the maximum allowed depth.
  Data Structure Complexity: Complex data structures that reference themselves or have deep hierarchies can also lead to this error.
  Event Handling: In event-driven programming, if an event handler calls another event handler that eventually calls the first one again, it can lead to this error.
  
  Solutions:
  
  Review Recursive Functions: Check any recursive functions for proper exit conditions. Ensure that there is a base case that will eventually stop the recursion.
  Optimize Loops: Reduce the nesting of loops where possible. Consider flattening the logic or breaking it into smaller, more manageable pieces.
  Refactor Code: If the code is too complex, consider refactoring it to simplify the logic and reduce the depth of function calls.
  Use Iterative Approaches: Where possible, replace recursive logic with iterative solutions to avoid deep call stacks.
  Debugging: Use debugging tools to trace the execution flow and identify where the excessive nesting is occurring. This can help pinpoint the exact location in the code that is causing the issue.
  
  Related Information:
  
  ABAP Stack Size: The maximum nesting depth is often related to the stack size allocated for the ABAP program. If the program is hitting the limit, it may be necessary to optimize the code rather than increasing the stack size.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. Sometimes, specific versions of SAP may have bugs that can lead to this error.
  Performance Considerations: Excessive nesting can lead to performance issues. Always aim for efficient coding practices to maintain optimal performance.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the EM411 error in your SAP environment.