How To Fix /PM0/ABB_MESSAGES284 - Partner number &1 must not be used more than once for an IO

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABB_MESSAGES -

• Message number: 284

• Message text: Partner number &1 must not be used more than once for an IO

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABB_MESSAGES284 - Partner number &1 must not be used more than once for an IO ?

  The SAP error message /PM0/ABB_MESSAGES284 indicates that a partner number is being used more than once for an Internal Order (IO) in the context of a specific transaction or process. This typically occurs in scenarios where partner functions (like vendors, customers, or other business partners) are assigned to an internal order, and the system enforces a rule that each partner number must be unique for that order.
  Cause:
  
  Duplicate Partner Assignment: The most common cause of this error is that the same partner number has been assigned multiple times to the same internal order.
  Configuration Issues: There may be configuration settings in the partner determination procedure that allow for duplicate entries, but the system is enforcing uniqueness for this specific transaction.
  Data Entry Errors: Manual data entry errors can lead to the same partner being entered multiple times.
  
  Solution:
  
  Check Partner Assignments: Review the partner assignments for the internal order in question. Ensure that each partner number is unique. You can do this by navigating to the relevant transaction (e.g., KO02 for changing internal orders) and checking the partner tab.
  Remove Duplicates: If you find duplicate partner numbers, remove the duplicates so that each partner number is only assigned once to the internal order.
  Review Configuration: If you believe that the configuration should allow for multiple assignments, consult with your SAP configuration team to review the partner determination settings.
  Data Validation: Implement data validation checks in your processes to prevent duplicate entries in the future.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KO02 (Change Internal Order) or KO03 (Display Internal Order) to manage internal orders and their partner assignments.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Documentation: Review SAP documentation on partner functions and internal orders to understand the rules and configurations that govern partner assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the module you are working with.