How To Fix MPE_OAN302 - PRT number &1 is already assigned to operation activity &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 302

• Message text: PRT number &1 is already assigned to operation activity &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN302 - PRT number &1 is already assigned to operation activity &2 ?

  The SAP error message MPE_OAN302 indicates that a Production Resource Tool (PRT) number is already assigned to a specific operation activity in a production order or process. This error typically arises when there is an attempt to assign the same PRT to multiple operations or when the PRT is already in use.
  Cause:
  
  Duplicate Assignment: The PRT is already assigned to another operation or activity within the same production order or in a different order.
  Incorrect Configuration: The system may be configured in a way that does not allow multiple assignments of the same PRT to different operations.
  Data Entry Error: There may have been a mistake in data entry, leading to an attempt to assign a PRT that is already in use.
  
  Solution:
  
  Check Current Assignments: Review the current assignments of the PRT in question. You can do this by navigating to the relevant production order and checking the operations to see where the PRT is already assigned.
  Reassign PRT: If the PRT is indeed assigned to another operation and you need to use it for a different operation, you may need to unassign it from the current operation first. This can be done in the production order or routing.
  Use a Different PRT: If the PRT is in use and cannot be unassigned, consider using a different PRT for the operation you are trying to assign it to.
  Consult Documentation: Check the SAP documentation or help files for specific instructions on managing PRT assignments in your version of SAP.
  Contact Support: If the issue persists and you cannot resolve it, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  PRT Management: Understanding how PRTs are managed in SAP can help prevent this error. Familiarize yourself with the PRT assignment process and the limitations regarding their use.
  Production Order Management: Knowledge of how production orders and operations are structured in SAP can provide insights into why this error occurs.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the MPE_OAN302 error and successfully manage your PRT assignments in SAP.