How To Fix /SAPAPO/MSDP_CAP124 - Program terminated due to possible endless loop

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MSDP_CAP -

• Message number: 124

• Message text: Program terminated due to possible endless loop

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 /SAPAPO/MSDP_CAP124 - Program terminated due to possible endless loop ?

  The SAP error message /SAPAPO/MSDP_CAP124 indicates that a program has been terminated due to a possible endless loop. This error typically occurs in the context of the Advanced Planning and Optimization (APO) module, particularly in the context of capacity planning or similar processes.
  Cause:
  
  Endless Loop in Code: The most common cause of this error is a programming logic issue where the code enters a loop that does not have a proper exit condition.
  Data Issues: Inconsistent or corrupt data in the master data or transaction data can lead to unexpected behavior in the planning algorithms, potentially causing loops.
  Configuration Issues: Incorrect configuration settings in the APO system can lead to scenarios where the planning process cannot complete successfully.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, it may lead to timeouts or perceived endless loops.
  
  Solution:
  
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and patches. SAP often releases notes that address known issues.
  Review Custom Code: If there are any custom enhancements or modifications in the APO area, review the code for potential infinite loops or logic errors.
  Analyze Data: Check the master data and transaction data for inconsistencies or corruption. Use transaction codes like /SAPAPO/SDP94 or /SAPAPO/SDP95 to analyze planning data.
  Configuration Review: Review the configuration settings in the APO system to ensure they are set up correctly. This includes checking the planning books, data views, and other relevant settings.
  Debugging: If you have access to the development environment, you can debug the program to identify where the loop is occurring. Use transaction SE80 or SE38 to analyze the program.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. You can use the error message number or keywords related to the issue.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any logs or dumps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in APO, such as /SAPAPO/SDP94 for planning book analysis and /SAPAPO/SDP95 for data view analysis.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Monitoring: Use transaction ST22 to check for dumps and SM21 for system logs to gather more information about the error context.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /SAPAPO/MSDP_CAP124 error message.