How To Fix GG412 - Index '&' of table & is unique

SAP Error Message - Details

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 412

• Message text: Index '&' of table & is unique

What causes this issue?

You have set index &V1& of table &V2& as 'unique'. It is not
recommended that you do so because indices cannot generally be created
as 'unique'.
If an index is set as 'unique', but is not in fact unique, update
terminations will occur.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Check the index definition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GG412 - Index '&' of table & is unique ?

  The SAP error message GG412 indicates that there is an issue with a unique index in a database table. Specifically, it means that the system has detected a violation of a unique constraint for the specified index in the specified table. This typically occurs when an attempt is made to insert or update a record in a way that would result in duplicate values for a field or combination of fields that are supposed to be unique.
  Cause:
  
  Duplicate Data Entry: The most common cause is that the data being inserted or updated already exists in the table, violating the unique index constraint.
  Incorrect Data Migration: If data has been migrated from another system or table, it may not adhere to the unique constraints defined in the target table.
  Concurrency Issues: Multiple transactions trying to insert or update the same record simultaneously can lead to this error.
  Application Logic Errors: There may be flaws in the application logic that lead to attempts to create duplicate entries.
  
  Solution:
  
  
  Check Existing Data: Review the data in the table to identify any existing records that may conflict with the new data being inserted or updated. You can use SQL queries to find duplicates.
  SELECT * FROM <table_name> WHERE <unique_field> = '<value>';
  
  
  Modify Data: If duplicates are found, you may need to modify the data being inserted or updated to ensure it adheres to the unique constraints.
  
  
  Adjust Application Logic: If the error is due to application logic, review and modify the code to prevent attempts to insert or update duplicate records.
  
  
  Data Migration Review: If this error occurred during a data migration process, ensure that the data being migrated is cleansed and does not contain duplicates.
  
  
  Transaction Management: Implement proper transaction management to handle concurrency issues, ensuring that transactions are isolated and do not interfere with each other.
  
  
  Related Information:
  
  Unique Index: A unique index is a database constraint that ensures all values in a column or a set of columns are unique across the table.
  Database Constraints: Understanding the constraints defined on your database tables can help in diagnosing and resolving issues related to data integrity.
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message, as there may be known issues or updates that can help resolve it.
  
  If the problem persists after following these steps, it may be beneficial to consult with a database administrator or SAP support for further assistance.