How To Fix MPE_OAN136 - OA &1, version &2 referenced in PRT assignment &3 &4 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 136

• Message text: OA &1, version &2 referenced in PRT assignment &3 &4 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.

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 MPE_OAN136 - OA &1, version &2 referenced in PRT assignment &3 &4 is unknown ?

  The SAP error message MPE_OAN136 typically indicates that there is an issue with the Production Resource Tool (PRT) assignment in the context of a production order or a related process. The message suggests that the system cannot find the specified object (in this case, a PRT) with the given version in the assignment.
  Cause:
  
  Missing PRT: The specified PRT (Production Resource Tool) does not exist in the system or has been deleted.
  Incorrect Version: The version of the PRT referenced in the assignment is incorrect or does not exist.
  Data Inconsistency: There may be inconsistencies in the data, such as missing master data or incorrect configuration settings.
  Authorization Issues: The user may not have the necessary authorizations to access the PRT or its version.
  
  Solution:
  
  Verify PRT Existence: Check if the PRT with the specified ID exists in the system. You can do this by navigating to the relevant transaction (e.g., CA03 for viewing PRTs).
  Check Version: Ensure that the version of the PRT referenced in the assignment is correct and exists. If necessary, update the assignment to reference the correct version.
  Review Assignments: Go through the PRT assignments in the production order or related documents to ensure they are correctly configured.
  Data Consistency Check: Run consistency checks or reports to identify any data inconsistencies that may be causing the issue.
  Authorization Check: Ensure that the user has the necessary authorizations to access the PRT and its version. This may involve checking user roles and permissions.
  Consult Documentation: Refer to SAP documentation or support notes related to PRT and the specific error message for additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA03 (Display PRT), CO02 (Change Production Order), and CO03 (Display Production Order).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify and resolve the issue related to the MPE_OAN136 error message in SAP.