How To Fix WU391 - @4J@Check item cat. Supply source is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 391

• Message text: @4J@Check item cat. Supply source is not valid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WU391 - @4J@Check item cat. Supply source is not valid ?

  The SAP error message WU391 @4J@ "Check item cat. Supply source is not valid" typically occurs in the context of materials management and procurement processes. This error indicates that there is an issue with the item category or the supply source defined for a particular material or purchasing document.
  Causes:
  
  Invalid Item Category: The item category assigned to the material may not be valid for the type of transaction being processed.
  Missing or Incorrect Supply Source: The supply source (vendor, plant, etc.) may not be correctly defined or may not exist in the system.
  Configuration Issues: There may be configuration issues in the material master or purchasing info records that lead to this error.
  Data Inconsistencies: There could be inconsistencies in the master data, such as the material master or vendor master records.
  
  Solutions:
  
  
  Check Item Category:
  
  Verify the item category assigned to the material in the purchasing document. Ensure that it is appropriate for the transaction type (e.g., standard, consignment, subcontracting).
  You can check the item category in the material master (MM03) or in the purchasing document (ME23N).
  
  
  
  Validate Supply Source:
  
  Ensure that the supply source (vendor or plant) is correctly defined in the system. Check the vendor master (XK03) and ensure that the vendor is active and has the necessary purchasing information.
  If the supply source is a plant, ensure that the plant is correctly set up in the material master.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SPRO transaction for purchasing and materials management. Ensure that the item categories and supply sources are correctly configured.
  Review the settings for the relevant purchasing organization and ensure that they are aligned with the item category and supply source.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the material master and vendor master data to identify any discrepancies.
  If necessary, update or correct any inconsistencies found.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details related to the item category and supply source configuration.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM03: Display Material Master
  ME23N: Display Purchase Order
  XK03: Display Vendor Master
  SPRO: Customizing Implementation Guide
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  
  User Roles: Ensure that the user has the necessary authorizations to access and modify the relevant master data.
  
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in materials management and procurement processes.