How To Fix WER121 -

WER121 - Overview

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 121

• Message text:

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 WER121 - ?

  SAP Error Message WER121
  
  Error Message Text:
  WER121 - "No valid partner found for partner function &"
  
  
  Cause:
  This error occurs when the system cannot find a valid business partner assigned to a specific partner function in a document or master data. In SAP, partner functions define roles of business partners (e.g., sold-to party, ship-to party, payer, contact person). If the partner function is required but no partner is assigned or the assigned partner is invalid or incomplete, the system raises this error.
  Common scenarios include:
  
  Missing partner assignment in sales documents (e.g., sales order, billing document).
  Partner function not maintained in customer master or vendor master.
  Incorrect or incomplete partner determination procedure.
  Partner determination procedure not assigned or configured properly.
  
  
  
  Solution:
  
  
  Check Partner Assignment:
  
  Verify that the required partner function is assigned a valid partner in the document or master data.
  For sales documents, check the partner tab and assign the correct partner.
  
  
  
  Maintain Partner Determination Procedure:
  
  Go to transaction VOPA (Partner Determination Procedures)