How To Fix /PLMI/BO_MPN001 - MPN material is inactive and Approved Manufacturer Parts List is active

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/BO_MPN -

• Message number: 001

• Message text: MPN material is inactive and Approved Manufacturer Parts List is active

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/BO_MPN001 - MPN material is inactive and Approved Manufacturer Parts List is active ?

  The SAP error message /PLMI/BO_MPN001 indicates that the Material Master record for a specific MPN (Manufacturer Part Number) is inactive, while the Approved Manufacturer Parts List (AMPL) is active. This situation typically arises in the context of managing materials and their associated manufacturer parts in SAP, particularly in industries where compliance and supplier management are critical.
  Cause:
  
  Inactive MPN: The MPN associated with the material is marked as inactive in the system. This could happen due to various reasons, such as the manufacturer no longer producing the part, or the part being obsolete.
  Active AMPL: The Approved Manufacturer Parts List is still active, which means that the system expects to find an active MPN associated with the material.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check MPN Status:
  
  Go to the MPN master data in SAP and check the status of the MPN in question. You can do this by navigating to the relevant transaction (e.g., MM03 for Material Master or /PLMI/MPN for MPN management).
  If the MPN is indeed inactive, you will need to either reactivate it or replace it with an active MPN.
  
  
  
  Reactivate MPN:
  
  If the MPN should be active, you can reactivate it by changing its status in the MPN master data. This typically requires appropriate authorization.
  
  
  
  Update AMPL:
  
  If the MPN is no longer valid and should remain inactive, you may need to update the AMPL to remove the reference to this inactive MPN. This ensures that the AMPL does not point to any inactive parts.
  
  
  
  Assign a New MPN:
  
  If the part is still needed but the MPN is inactive, consider assigning a new active MPN to the material. This can be done in the material master record.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or guidelines within your organization regarding MPN management and AMPL processes to ensure compliance with internal policies.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and /PLMI/MPN (MPN Management).
  User Roles: Ensure that you have the necessary permissions to make changes to MPN and material master data.
  SAP Notes: Check for any SAP Notes or updates related to MPN management that might provide additional insights or solutions.
  Training: If you are unfamiliar with MPN and AMPL processes, consider seeking training or guidance from a knowledgeable colleague or SAP consultant.
  
  By following these steps, you should be able to resolve the error and ensure that your MPN and AMPL data are correctly aligned in SAP.