How To Fix SY121 - More than & loop passes

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 121

• Message text: More than & loop passes

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SY121 - More than & loop passes ?

  The SAP error message SY121 ("More than & loop passes") typically occurs during the execution of ABAP programs, particularly when there is an infinite loop or excessive looping in the code. This error is a safeguard mechanism to prevent the system from hanging indefinitely due to poorly written loops.
  Cause:
  
  Infinite Loop: The most common cause is an infinite loop in the ABAP code where the exit condition is never met.
  Excessive Iterations: Even if the loop is not infinite, it may exceed the predefined limit of iterations set by the SAP system.
  Logical Errors: There may be logical errors in the code that lead to unexpected behavior, causing the loop to run more times than intended.
  
  Solution:
  
  Review the Code: Check the loop structure in your ABAP code. Ensure that the loop has a valid exit condition that will eventually be met.
  
  Example of a typical loop structure:
  DATA: lv_counter TYPE i VALUE 0.
  WHILE lv_counter < 10.
    " Your processing logic here
    lv_counter = lv_counter + 1.
  ENDWHILE.
  
  
  
  Debugging: Use the ABAP debugger to step through the code and monitor the loop's execution. This will help identify where the logic may be failing.
  Limit Loop Iterations: If the loop is expected to run a large number of times, consider implementing a mechanism to limit the number of iterations or to break out of the loop after a certain threshold.
  Check Data Conditions: Ensure that the data being processed within the loop is valid and that any conditions that control the loop's execution are correctly set.
  Performance Optimization: If the loop is necessary but is causing performance issues, consider optimizing the logic or using more efficient data processing techniques (e.g., using internal tables).
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Documentation: Review the ABAP programming guidelines and best practices to avoid common pitfalls that lead to such errors.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other developers who may have encountered similar issues.
  
  By addressing the underlying cause of the loop and ensuring proper coding practices, you can resolve the SY121 error effectively.