How To Fix PMRP018 - Simulation ID &1 is already in use by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PMRP - Messages for pMRP

• Message number: 018

• Message text: Simulation ID &1 is already in use by &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PMRP018 - Simulation ID &1 is already in use by &2 ?

  The SAP error message PMRP018 indicates that a simulation ID is already in use by another user or process. This typically occurs in the context of planning or simulation activities within the SAP system, particularly in modules related to Production Planning (PP) or Project System (PS).
  Cause:
  The error arises when:
  
  A user attempts to create or modify a simulation using a simulation ID that is currently locked or in use by another user or process.
  The simulation ID is being accessed in a way that does not allow concurrent usage, leading to a conflict.
  
  Solution:
  To resolve the PMRP018 error, you can take the following steps:
  
  
  Check Current Users: Identify if another user is currently using the simulation ID. You can do this by checking the transaction logs or using transaction codes like SM12 (to check for locks) or SM21 (to view system logs).
  
  
  Wait for Release: If another user is using the simulation ID, you may need to wait until they finish their work and release the lock.
  
  
  Contact the User: If possible, communicate with the user who is using the simulation ID to understand their timeline and whether they can release it sooner.
  
  
  Use a Different Simulation ID: If the simulation ID is not critical, consider using a different simulation ID for your work.
  
  
  Unlock the ID: If you have the necessary authorizations and it is appropriate to do so, you can unlock the simulation ID using transaction SM12. However, be cautious with this approach, as it may disrupt another user's work.
  
  
  Check for Background Jobs: Sometimes, background jobs may also hold locks on simulation IDs. Check for any running jobs that might be using the ID.
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage locks.
  SM21: To view system logs for any related issues.
  SE11: To check the data dictionary for the simulation ID table if needed.
  
  
  
  Documentation: Review SAP documentation or help files related to the specific module you are working with (e.g., PP, PS) for more context on simulation IDs and their usage.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  
  
  By following these steps, you should be able to resolve the PMRP018 error and continue with your planning or simulation activities in SAP.