How To Fix BUP_ADDR101 - External address number &1 is not unique for every point in time

SAP Error Message - Details

• Message type: E = Error

• Message class: BUP_ADDR - BP: Message Class for Address Segment

• Message number: 101

• Message text: External address number &1 is not unique for every point in time

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BUP_ADDR101 - External address number &1 is not unique for every point in time ?

  The SAP error message BUP_ADDR101 indicates that there is a problem with the uniqueness of an external address number in the Business Partner (BP) master data. Specifically, it means that the external address number specified is not unique for every point in time, which can lead to inconsistencies in the data.
  Cause:
  
  Duplicate External Address Numbers: The external address number you are trying to use is already assigned to another business partner or address in the system for the same time period.
  Incorrect Time Validity: The external address number may have been assigned to multiple records that overlap in their validity periods.
  Data Migration Issues: If data was migrated from another system, it’s possible that duplicates were introduced during the migration process.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like BP (Business Partner) or SE16N (Data Browser) to check the database table for existing entries with the same external address number.
  Look specifically in the BUT020 table, which stores address data for business partners.
  
  
  
  Correct the Data:
  
  If duplicates are found, you will need to either delete or modify the conflicting entries to ensure that each external address number is unique for the relevant time periods.
  Ensure that the validity periods of the addresses do not overlap.
  
  
  
  Adjust Time Validity:
  
  If you need to keep both entries, consider adjusting the validity periods so that they do not conflict.
  
  
  
  Data Consistency Check:
  
  After making changes, run consistency checks to ensure that the business partner data is valid and does not contain any further duplicates.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific guidelines on managing business partner data and external address numbers.
  
  
  
  Related Information:
  
  Business Partner Master Data: Understanding how business partner data is structured in SAP is crucial. Familiarize yourself with the relevant tables and fields.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Familiarize yourself with transaction codes like BP, SE16N, and BUPA for managing business partner data.
  Data Migration Tools: If this issue arose during a data migration, review the tools and methods used to ensure that they enforce uniqueness constraints.
  
  By following these steps, you should be able to resolve the BUP_ADDR101 error and ensure that your external address numbers are unique across the system.