How To Fix EDEREG_INV428 - Partner for contract account &2/PoD (INT_UI &1) not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: EDEREG_INV - Error Messages for Payment Management in a Deregulated Env.

• Message number: 428

• Message text: Partner for contract account &2/PoD (INT_UI &1) not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EDEREG_INV428 - Partner for contract account &2/PoD (INT_UI &1) not unique ?

  The SAP error message EDEREG_INV428 indicates that there is a problem with the uniqueness of the partner information associated with a contract account and a specific point of delivery (PoD). This error typically arises in the context of billing or invoicing processes, particularly when dealing with contract accounts in the SAP IS-U (Industry Solution for Utilities) module.
  Cause:
  The error occurs when the system finds multiple entries for the same partner (e.g., customer, vendor) associated with a specific contract account and point of delivery. This can happen due to:
  
  Duplicate Partner Assignments: There may be multiple partner roles assigned to the same contract account for the same PoD.
  Incorrect Configuration: The configuration settings for partner determination may not be set up correctly, leading to ambiguity in partner assignments.
  Data Integrity Issues: There may be inconsistencies or duplicates in the master data related to partners, contract accounts, or points of delivery.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Partner Assignments:
  
  Go to the contract account in question and review the partner assignments. Ensure that each partner role (e.g., sold-to party, payer, etc.) is assigned uniquely.
  Use transaction codes like BP (Business Partner) or FPL1N (Display Contract Account) to check the details.
  
  
  
  Review Configuration:
  
  Check the configuration settings for partner determination in the SAP system. Ensure that the rules for partner assignment are correctly defined and do not allow for multiple entries for the same role.
  
  
  
  Data Cleanup:
  
  If duplicates are found, you may need to clean up the data by removing or consolidating duplicate partner entries. This may involve working with your data management team to ensure that the master data is accurate and consistent.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to partner determination and contract accounts for any specific guidelines or known issues.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that the billing or invoicing process can proceed without issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP for managing business partners, FPL1N for contract accounts, and FPL2 for displaying contract account details.
  SAP Notes: Check SAP Notes for any updates or patches related to this error message. SAP frequently releases notes that address specific issues or provide guidance on configuration.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By addressing the root cause of the error and ensuring that partner assignments are unique and correctly configured, you should be able to resolve the EDEREG_INV428 error effectively.