How To Fix WER121 -

SAP Error Message - Details

• 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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) and check if the partner function is included in the procedure assigned to the document type or master data.
  Ensure the partner determination procedure is correctly assigned to the sales document type or customer master.
  
  
  
  Maintain Customer/Vendor Master Data:
  
  Use transactions XD03 (Display Customer) or VD03 (Display Customer - Sales Area) to check if the partner functions are maintained.
  If missing, maintain the partner functions using XD02 or VD02.
  
  
  
  Check Partner Function Configuration:
  
  Use transaction SPRO ? Logistics Execution ? Shipping ? Basic Shipping Functions ? Partner Determination ? Define Partner Functions.
  Verify that the partner function is active and correctly configured.
  
  
  
  Review Partner Determination Procedure in Sales Document:
  
  In sales order, check the partner tab to ensure the partner function is filled.
  If automatic partner determination is expected, check the configuration and master data.
  
  
  
  Debugging (if needed):
  
  If the above steps do not resolve the issue, debugging the partner determination logic or checking user exits/enhancements related to partner determination may be necessary.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  VA01 / VA02 / VA03 – Create/Change/Display Sales Order
  XD01 / XD02 / XD03 – Create/Change/Display Customer Master (General)
  VD01 / VD02 / VD03 – Create/Change/Display Customer Master (Sales Area)
  VOPA – Partner Determination Procedures
  SPRO – IMG Configuration
  
  
  
  SAP Notes:
  
  Check SAP Notes related to partner determination and WER121 for specific patches or known issues.
  
  
  
  Partner Functions:
  
  Common partner functions include AG (Sold-to party), WE (Ship-to party), RG (Payer), etc.
  
  
  
  
  Summary:
  WER121 indicates that the system cannot find a valid partner for a required partner function. The fix involves ensuring that the partner function is properly assigned in the document or master data and that the partner determination procedure is correctly configured and assigned.
  
  If you provide the context (e.g., transaction or process where the error occurs), I can give more specific guidance.