How To Fix /PLMU/PPE_ENG_UI121 - Deactivation of simulation failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMU/PPE_ENG_UI -

• Message number: 121

• Message text: Deactivation of simulation failed

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 /PLMU/PPE_ENG_UI121 - Deactivation of simulation failed ?

  The SAP error message /PLMU/PPE_ENG_UI121 Deactivation of simulation failed typically occurs in the context of the SAP Production Planning and Execution (PPE) module, particularly when dealing with simulations in the planning environment. This error can arise due to various reasons, and understanding the cause is essential for finding a solution.
  Possible Causes:
  
  
  Data Inconsistencies: There may be inconsistencies in the data that the simulation is trying to process. This could include missing or incorrect master data, such as material master records or production resources.
  
  
  Locking Issues: The system might be experiencing locking issues where another user or process is holding a lock on the data that the simulation is trying to deactivate.
  
  
  Authorization Issues: The user may not have the necessary authorizations to deactivate the simulation.
  
  
  Technical Errors: There could be underlying technical issues, such as problems with the database or application server.
  
  
  Configuration Issues: Incorrect configuration settings in the PPE module could lead to this error.
  
  
  Solutions:
  
  
  Check Data Consistency: Verify that all relevant master data is complete and correct. Ensure that all necessary records are available and properly configured.
  
  
  Release Locks: If the issue is related to locking, check if there are any active sessions or processes that are holding locks on the relevant data. You can use transaction codes like SM12 to view and manage locks.
  
  
  Review Authorizations: Ensure that the user has the appropriate authorizations to perform the action. You may need to consult with your SAP security team to verify and adjust user roles.
  
  
  Check System Logs: Review the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the failure.
  
  
  Technical Support: If the issue persists, consider reaching out to your SAP Basis or technical support team. They can help diagnose any underlying technical issues or bugs in the system.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates available that resolve known issues.
  
  
  Recreate the Simulation: If feasible, try recreating the simulation from scratch to see if the error persists. This can sometimes clear up transient issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to check locks), SLG1 (to view logs), and SE80 (to check for custom developments).
  Documentation: Review SAP documentation related to the PPE module for best practices and troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution. If the problem continues, further investigation may be necessary, potentially involving SAP support.