How To Fix UCM0710 - Data loss in the records with the identical key &2 in table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UCM0 - Messages for Data Basis, Cons Area, ...

• Message number: 710

• Message text: Data loss in the records with the identical key &2 in table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UCM0710 - Data loss in the records with the identical key &2 in table &1 ?

  The SAP error message UCM0710 indicates that there is a data integrity issue in the database table where multiple records with the same key are found, which should not happen according to the table's design. This typically occurs in scenarios where a unique constraint is expected but is violated due to duplicate entries.
  Cause:
  
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate records in a table that is supposed to maintain unique keys. This can happen due to:
  
  Incorrect data imports or migrations.
  Bugs in custom programs or enhancements that insert data without proper checks.
  Manual data entry errors.
  
  
  
  Data Consistency Issues: If the application logic does not enforce uniqueness properly, it can lead to situations where the same key is inserted multiple times.
  
  
  Solution:
  
  
  Identify Duplicates: Use SQL queries to identify the duplicate records in the specified table. For example:
  SELECT key_column, COUNT(*)
  FROM table_name
  GROUP BY key_column
  HAVING COUNT(*) > 1;
  Replace key_column and table_name with the actual column and table names.
  
  
  Data Cleanup: Once duplicates are identified, you need to decide how to handle them:
  
  Delete Duplicates: If duplicates are not needed, you can delete the extra records while keeping one instance.
  Merge Records: If the records contain different information, you may need to merge them into a single record.
  
  
  
  Prevent Future Duplicates: 
  
  Review and modify the data entry processes to ensure that duplicates cannot be created in the future.
  Implement checks in custom programs to validate data before insertion.
  Consider adding unique constraints in the database schema if they are not already present.
  
  
  
  Data Validation: Implement data validation rules in the application to prevent the entry of duplicate records.
  
  
  Related Information:
  
  Database Constraints: Understanding the unique constraints and primary keys defined in the database schema is crucial for maintaining data integrity.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Logs: Review transaction logs to identify when and how the duplicates were created, which can help in preventing future occurrences.
  
  Conclusion:
  The UCM0710 error indicates a serious data integrity issue that needs to be addressed promptly. By identifying and resolving the duplicates, and implementing measures to prevent future occurrences, you can maintain the integrity of your SAP system.