How To Fix V2121 - Exactly one partner could be selected

SAP Error Message - Details

• Message type: E = Error

• Message class: V2 - Kopierfunktionen der Verkaufsbelegbearbeitung

• Message number: 121

• Message text: Exactly one partner could be selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message V2121 - Exactly one partner could be selected ?

  The SAP error message V2121 ("Exactly one partner could be selected") typically occurs in the context of partner determination in sales documents, such as sales orders, quotations, or contracts. This error indicates that the system expects exactly one partner to be selected for a specific role (e.g., sold-to party, ship-to party, payer, etc.), but either none or more than one partner has been selected.
  Causes:
  
  Incorrect Partner Determination Procedure: The partner determination procedure may not be set up correctly, leading to multiple partners being available for selection when only one is required.
  Missing Partner Data: The required partner data for the document may be incomplete or missing, causing the system to not recognize a valid partner.
  Customizations or Enhancements: Custom code or enhancements may interfere with the standard partner determination process, leading to unexpected behavior.
  User Input Error: The user may have inadvertently selected multiple partners or failed to select any partner at all.
  
  Solutions:
  
  
  Check Partner Determination Procedure:
  
  Go to the configuration settings for partner determination (Transaction code: SPRO).
  Ensure that the partner determination procedure is correctly defined for the document type you are working with.
  Verify that the partner roles are correctly assigned and that the settings allow for only one partner to be selected.
  
  
  
  Review Partner Data:
  
  Check the master data for the business partners involved (e.g., customer master records).
  Ensure that the necessary partner roles are filled out correctly and that there are no duplicates.
  
  
  
  Validate User Input:
  
  Instruct users to carefully select the appropriate partner and ensure that only one partner is selected for the required role.
  If using a custom screen or transaction, ensure that the user interface clearly indicates the requirement for a single partner selection.
  
  
  
  Debugging Custom Code:
  
  If there are custom enhancements or modifications, review the code to ensure it does not conflict with the standard partner determination logic.
  Use transaction SE80 or SE37 to analyze any custom function modules or enhancements that may be affecting partner selection.
  
  
  
  Testing:
  
  After making changes, test the partner selection process in a development or quality assurance environment to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SPRO (Customizing Implementation Guide)
  VD01/VD02/VD03 (Customer Master Data)
  VA01/VA02/VA03 (Sales Order Processing)
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on partner determination and configuration settings.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to partner determination and the V2121 error.
  
  
  By following these steps, you should be able to identify the cause of the V2121 error and implement a solution to resolve it.