How To Fix /PLMI/PPE_SP036 - Simulation data was changed since activation

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPE_SP -

• Message number: 036

• Message text: Simulation data was changed since activation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/PPE_SP036 - Simulation data was changed since activation ?

  The SAP error message /PLMI/PPE_SP036 Simulation data was changed since activation typically occurs in the context of SAP's Production Planning and Detailed Scheduling (PP/DS) or similar modules where simulation data is being used. This error indicates that the simulation data has been modified after it was activated, which can lead to inconsistencies in the planning process.
  Cause:
  
  Data Modification: The simulation data was altered after it was activated. This could happen if a user or a process changed the data in the background while the simulation was still active.
  Concurrency Issues: Multiple users or processes trying to access or modify the same simulation data simultaneously can lead to this error.
  System Bugs: Occasionally, bugs in the SAP system or specific configurations can lead to unexpected behavior regarding simulation data.
  
  Solution:
  
  
  Re-activate the Simulation: The most straightforward solution is to deactivate and then reactivate the simulation data. This ensures that the system is working with the most current data.
  
  Navigate to the relevant transaction or application where the simulation is being run.
  Deactivate the simulation.
  Make any necessary adjustments or ensure no other processes are modifying the data.
  Reactivate the simulation.
  
  
  
  Check for Concurrent Processes: Ensure that no other users or background jobs are modifying the simulation data while you are working with it. If necessary, coordinate with your team to avoid conflicts.
  
  
  Review Change Logs: If you have access, check the change logs to see what modifications were made to the simulation data. This can help identify if a specific user or process is causing the issue.
  
  
  System Configuration: Review the configuration settings related to simulation data in your SAP system. Ensure that they are set up correctly and that there are no known issues with the current version of your SAP system.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that might address this specific error. Sometimes, SAP releases updates that fix known issues.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the steps leading up to it and any relevant logs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP for managing simulations, such as /N/PLMI/PPE or other related transactions.
  Documentation: Review SAP documentation related to the specific module you are working with (e.g., PP/DS) for best practices on managing simulation data.
  User Training: Ensure that users involved in the simulation process are trained on how to properly activate and deactivate simulations to avoid conflicts.
  
  By following these steps, you should be able to resolve the error and ensure that your simulation data is consistent and reliable.