How To Fix MPE_OAN137 - OA &1, version &2 referenced in certificate assignment &3 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 137

• Message text: OA &1, version &2 referenced in certificate assignment &3 is unknown

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 MPE_OAN137 - OA &1, version &2 referenced in certificate assignment &3 is unknown ?

  The SAP error message MPE_OAN137 typically relates to issues with the assignment of certificates in the context of Object Assignment in SAP. This error indicates that the system cannot find or recognize the specified object (in this case, a certificate) for the given version and assignment.
  Cause:
  
  Missing or Incorrect Data: The specified certificate or its version may not exist in the system, or there may be a typo in the certificate number or version.
  Data Inconsistency: There may be inconsistencies in the data related to the certificate assignment, such as missing entries in the database.
  Authorization Issues: The user may not have the necessary authorizations to view or assign the specified certificate.
  Configuration Issues: There may be configuration issues in the system that prevent the proper assignment of the certificate.
  
  Solution:
  
  Verify Certificate and Version: Check if the certificate number and version specified in the error message are correct. Ensure that they exist in the system.
  Check Assignment: Review the certificate assignment in the relevant transaction (e.g., transaction OAN1 for asset accounting) to ensure that the assignment is valid and complete.
  Data Consistency Check: Run consistency checks in the system to identify any discrepancies in the data related to certificates and their assignments.
  Authorization Check: Ensure that the user has the necessary authorizations to access and assign the certificate. This may involve checking user roles and permissions.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional troubleshooting steps or patches that may resolve the issue.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAN1 (for asset accounting) and OAN2 (for certificate management).
  SAP Notes: Search for SAP Notes related to MPE_OAN137 for any known issues or fixes.
  System Logs: Check system logs (transaction SLG1) for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.