How To Fix WY038 - Partner function & has more than one default partner

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 038

• Message text: Partner function & has more than one default partner

Self-Explanatory Message

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• What is the cause and solution for SAP error message WY038 - Partner function & has more than one default partner ?

  SAP Error Message:
  
  WY038 - Partner function & has more than one default partner
  
  Cause:
  This error occurs when the system finds more than one partner assigned as the default partner for the same partner function in a business transaction or master data. In SAP, each partner function (e.g., sold-to party, ship-to party, payer, etc.) should have only one default partner assigned to avoid ambiguity during document processing.
  For example, if in a customer master or sales document, two partners are marked as default for the same partner function, the system cannot determine which one to pick automatically, hence it throws this error.
  
  Where it typically occurs:
  
  Sales documents (e.g., sales orders, deliveries, billing documents)
  Customer master data (XD02/VD02)
  Partner determination procedures in sales and distribution (SD)
  Partner determination in other modules like FI, MM, etc.
  
  
  Solution:
  
  
  Check Partner Assignments:
  
  Go to the relevant transaction (e.g., sales order VA02, customer master XD02/VD02).
  Navigate to the Partners tab.
  Identify the partner function mentioned in the error.
  Verify if more than one partner is marked as default for that partner function.
  
  
  
  Correct the Default Partner:
  
  Ensure that only one partner is set as the default for each partner function.
  Remove the default flag from the extra partner(s) so that only one remains.
  
  
  
  Check Partner Determination Procedure:
  
  If the issue is in partner determination configuration, check the partner determination procedure assigned to the sales document type or master data.
  Use transaction VOPA or SPRO path:
  
  Sales and Distribution -> Basic Functions -> Partner Determination -> Set Up Partner Determination
  Verify that the partner determination procedure does not assign multiple default partners for the same function.
  
  
  
  Reprocess the Document:
  
  After correction, save and reprocess the document or master data.
  
  
  
  
  Additional Information:
  
  Partner Function: A role assigned to a business partner in a transaction (e.g., Sold-to party, Ship-to party, Bill-to party, Payer).
  Default Partner: The partner that the system automatically selects for a partner function if no other partner is explicitly specified.
  This error helps maintain data integrity and ensures the system can correctly determine partners during document processing.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Code
  WY038
  
  
  Cause
  More than one partner assigned as default for the same partner function
  
  
  Solution
  Ensure only one default partner per partner function in the document or master data
  
  
  Transactions
  VA02, XD02, VD02, VOPA, SPRO (Partner Determination configuration)
  
  
  Module
  SD (Sales and Distribution), but can appear in other modules with partner determination
  
  
  
  
  If you need help with specific steps or screenshots, please provide the transaction or context where the error occurs.