How To Fix MPE_OAN139 - OA &1, version &2 referenced in ref. material assignment &3 &4 is unknown


MPE_OAN139 - Overview

  • Message type: E = Error

  • Message class: MPE_OAN - Operation Activity Network Messages

  • Message number: 139

  • Message text: OA &1, version &2 referenced in ref. material assignment &3 &4 is unknown

  • Show details Hide details


  • 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.


MPE_OAN139 - Details

  • The SAP error message MPE_OAN139 typically indicates that there is an issue with the assignment of a reference material in the context of a specific object or transaction. This error can occur in various scenarios, particularly when dealing with materials, production orders, or other related objects in SAP.
    
    Cause: Missing Reference Material: The reference material specified in the error message does not exist in the system or is not properly defined. Incorrect Version: The version of the reference material may not be valid or may not match the expected version in the system. Data Inconsistency: There may be inconsistencies in the data related to the material assignment, such as missing or incorrect master data. Authorization Issues: The user may not have the necessary authorizations to access the reference material or its version.
    Solution: Check Material Existence: Verify that the reference material (identified by &3) exists in the system. You can do this by using transaction codes like

    Already have an account? Login here!




Instant HelpGet instant SAP help. Sign up for our Free Essentials Plan.


MPE_OAN139 - Related SAP Errors

Click on this link to search all SAP messages.


Rating
The AI Support Assistant is great. It provides comprehensive assistance even on the most difficult issues. I highly recommend this service.
Rate 1
John Jordan
SAP Consultant & Author