How To Fix BUP_RELATIONS064 - Key is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: BUP_RELATIONS - BPR: Message Class for Relationship Segments

• Message number: 064

• Message text: Key is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BUP_RELATIONS064 - Key is not unique ?

  The SAP error message BUP_RELATIONS064: Key is not unique typically occurs in the context of Business Partner (BP) relationships. This error indicates that the system has encountered a situation where it expects a unique key for a relationship but has found multiple entries that match the criteria, leading to ambiguity.
  Cause:
  
  Duplicate Entries: The most common cause of this error is the presence of duplicate entries in the database for the same relationship type between business partners.
  Incorrect Data Entry: During the creation or modification of business partner relationships, incorrect or duplicate data may have been entered.
  Data Migration Issues: If data has been migrated from another system or through a batch process, it may have resulted in duplicate relationships being created.
  Configuration Issues: There may be issues with the configuration of the relationship types or the business partner roles that lead to non-unique keys.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like BP (Business Partner) or SE16N (Data Browser) to check the relevant tables (e.g., BUT050 for business partner relationships) for duplicate entries.
  Identify and remove or correct any duplicate entries that violate the uniqueness constraint.
  
  
  
  Data Correction:
  
  If duplicates are found, you may need to delete or modify the duplicate entries to ensure that each relationship is unique.
  Ensure that the data being entered is validated to prevent duplicates from being created in the first place.
  
  
  
  Review Configuration:
  
  Check the configuration of the business partner roles and relationship types in the customizing settings (transaction SPRO).
  Ensure that the settings are correctly defined to avoid conflicts.
  
  
  
  Data Migration Review:
  
  If the error occurred after a data migration, review the migration process to ensure that it correctly handled unique constraints.
  Consider re-running the migration with checks for duplicates.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to business partner relationships for any specific guidance or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  BP: Business Partner Maintenance
  SE16N: Data Browser for table checks
  SPRO: Customizing settings
  
  
  Tables:
  
  BUT050: Business Partner Relationships
  BUT020: Business Partner Roles
  
  
  SAP Notes: Check SAP Notes for any updates or patches related to this error message, as SAP frequently releases notes that address specific issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.