How To Fix IX011 - Partner function & can only be used once

SAP Error Message - Details

• Message type: E = Error

• Message class: IX - Messages for Service Processing

• Message number: 011

• Message text: Partner function & can only be used once

What causes this issue?

The function has been defined in the partner determination procedure
as unique.

System Response

The system will not allow a second entry with this function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IX011 - Partner function & can only be used once ?

  The SAP error message "IX011 Partner function & can only be used once" typically occurs in the context of partner functions in sales documents, such as sales orders or contracts. This error indicates that a specific partner function (like Sold-to Party, Ship-to Party, etc.) has been assigned more than once in the document, which is not allowed.
  Cause:
  
  Duplicate Partner Function Assignment: The most common cause of this error is that the same partner function has been assigned multiple times to a single document. For example, if you try to assign the same Sold-to Party to a sales order more than once, SAP will throw this error.
  Configuration Issues: There may be issues in the configuration of partner functions in the system, leading to unexpected behavior.
  Data Entry Errors: Users may inadvertently enter the same partner function multiple times during data entry.
  
  Solution:
  
  Check Partner Functions: Review the partner functions assigned to the document. Ensure that each partner function is unique and is only assigned once. You can do this by navigating to the partner function section of the document and checking for duplicates.
  Correct Data Entry: If duplicates are found, remove the extra assignments. Ensure that each partner function is correctly assigned according to business requirements.
  Review Configuration: If the issue persists, check the configuration settings for partner functions in the relevant customizing settings (transaction code SPRO). Ensure that the partner functions are set up correctly and that there are no restrictions that could lead to this error.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on partner functions and their configurations.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like VA01 (Create Sales Order), VA02 (Change Sales Order), or VA03 (Display Sales Order) to access the relevant documents and check partner functions.
  SAP Notes: Check SAP Notes for any known issues or patches related to partner functions and this specific error message.
  User Training: Ensure that users are trained on how to correctly assign partner functions to avoid this error in the future.
  
  By following these steps, you should be able to resolve the "IX011 Partner function & can only be used once" error in SAP.