How To Fix /SAPAPO/PDRP_APPR037 - Simsession could not be opened

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PDRP_APPR -

• Message number: 037

• Message text: Simsession could not be opened

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PDRP_APPR037 - Simsession could not be opened ?

  The SAP error message /SAPAPO/PDRP_APPR037 Simsession could not be opened typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with opening a simulation session. This can happen for various reasons, and understanding the cause is crucial for finding a solution.
  Possible Causes:
  
  Session Locking: The simulation session might be locked by another user or process, preventing it from being opened.
  Authorization Issues: The user may not have the necessary authorizations to access the simulation session.
  Technical Issues: There could be technical problems with the APO system, such as database connectivity issues or system performance problems.
  Configuration Issues: Incorrect configuration settings in the APO system can lead to issues with session management.
  Expired Sessions: The session may have expired or been deleted, making it unavailable for access.
  
  Solutions:
  
  
  Check Session Locks:
  
  Use transaction code /SAPAPO/PDRP to check if the session is locked. If it is, you may need to wait for the lock to be released or contact the user who has the lock.
  
  
  
  Verify Authorizations:
  
  Ensure that the user has the necessary authorizations to access the simulation session. This can be checked in transaction SU53 or by consulting with your security team.
  
  
  
  System Health Check:
  
  Perform a system health check to ensure that there are no underlying technical issues. Check for any system alerts or performance issues that might be affecting the APO system.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the simulation sessions in the APO system. Ensure that all necessary parameters are correctly set.
  
  
  
  Session Management:
  
  If the session has expired or is no longer available, you may need to create a new simulation session. This can be done through the appropriate transaction in APO.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/PDRP for simulation sessions and SU53 for authorization checks.
  Documentation: Review SAP documentation related to APO and simulation sessions for additional insights and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the error message /SAPAPO/PDRP_APPR037 Simsession could not be opened.