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

WU391 - Overview

• 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

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.

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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