How To Fix MPN104 - MPN material & not yet assigned to an inventory-managed material

SAP Error Message - Details

• Message type: E = Error

• Message class: MPN - System Messages re Manufacturer Part Number Management

• Message number: 104

• Message text: MPN material & not yet assigned to an inventory-managed material

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPN104 - MPN material & not yet assigned to an inventory-managed material ?

  The SAP error message MPN104 indicates that a material is defined as a "MPN material" (Manufacturer Part Number) but has not yet been assigned to an inventory-managed material. This typically occurs in scenarios where the system expects a link between the MPN and a specific inventory-managed material, but that link is missing.
  Cause:
  
  Missing Assignment: The MPN material has not been assigned to an inventory-managed material in the system.
  Configuration Issues: There may be configuration issues in the material master data or in the MPN settings.
  Data Entry Errors: Incorrect data entry during the creation of the MPN material or the inventory-managed material.
  
  Solution:
  To resolve the MPN104 error, you can follow these steps:
  
  
  Check MPN Assignment:
  
  Go to the material master data for the MPN material.
  Verify if the MPN is correctly assigned to an inventory-managed material. You can do this by navigating to the relevant views in the material master (e.g., Basic Data, Purchasing, or MPN views).
  
  
  
  Create or Update Assignment:
  
  If the assignment is missing, you need to create or update the assignment. This can typically be done in the material master by:
  
  Navigating to the MPN view.
  Adding the relevant inventory-managed material number to the MPN.
  
  
  
  
  
  Review Configuration:
  
  Check the configuration settings for MPN in the SAP system. Ensure that the settings for MPN materials and inventory management are correctly configured.
  You may need to consult with your SAP Basis or configuration team to ensure that the MPN functionality is set up correctly.
  
  
  
  Data Consistency Check:
  
  Perform a data consistency check to ensure that there are no other related issues in the material master data that could be causing the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed guidance on MPN materials and inventory management.
  
  
  
  Related Information:
  
  MPN (Manufacturer Part Number): This is a unique identifier assigned by manufacturers to identify their products. In SAP, MPNs are used to manage procurement and inventory processes.
  Inventory Management: This module in SAP is responsible for managing stock levels, movements, and inventory valuation.
  Material Master Data: This is a central repository of information related to materials in SAP, which includes various views such as Basic Data, Purchasing, Sales, and MPN.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management for further assistance.