How To Fix EDEREG_INV443 - External BP number &1 for partner selection 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: 443

• Message text: External BP number &1 for partner selection not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EDEREG_INV443 - External BP number &1 for partner selection not unique ?

  The SAP error message EDEREG_INV443 indicates that there is an issue with the external Business Partner (BP) number during partner selection. Specifically, it means that the external BP number provided is not unique, which can lead to confusion in identifying the correct business partner in the system.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Duplicate External BP Numbers: There are multiple business partners in the system that share the same external BP number.
  Incorrect Configuration: The system may not be configured correctly to handle external BP numbers, leading to conflicts.
  Data Migration Issues: If data has been migrated from another system, it is possible that duplicate entries were created during the migration process.
  
  Solution:
  To resolve the EDEREG_INV443 error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction code BP (Business Partner) to search for the external BP number in question.
  Check if there are multiple entries with the same external BP number.
  
  
  
  Identify and Resolve Duplicates:
  
  If duplicates are found, determine which entry is the correct one to use.
  You may need to delete or merge the duplicate entries, depending on your business requirements.
  
  
  
  Review Configuration:
  
  Ensure that the configuration settings for Business Partners are correctly set up to handle external numbers.
  Check the settings in the relevant customizing transactions (e.g., SPRO) to ensure that the external number assignment is unique.
  
  
  
  Data Cleansing:
  
  If the issue arose from data migration, consider performing a data cleansing exercise to remove or correct duplicate entries.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to Business Partner management for any specific guidelines or updates that may address this issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking for duplicates and reviewing configurations, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  BP: Business Partner maintenance.
  SE16N: Data browser to check the underlying tables for duplicates.
  
  
  
  Tables:
  
  BUT000: General data for Business Partners.
  BUT020: Business Partner roles.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  
  
  By following these steps, you should be able to identify the cause of the EDEREG_INV443 error and implement a solution to resolve it.