How To Fix UX396 - Insert cannot be executed for object &, since key & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: UX - TR: Business Partner and Loan Conversion

• Message number: 396

• Message text: Insert cannot be executed for object &, since key & already exists

What causes this issue?

The table is to be changed in insert or modify mode. An entry already
exists in the database with the specified key.

System Response

The system refuses to make the transfer.

How to fix this error?

Check the transfer data and start the transfer run again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UX396 - Insert cannot be executed for object &, since key & already exists ?

  The SAP error message UX396 indicates that there is an attempt to insert a record into a database table or object, but the key for that record already exists. This typically occurs when you are trying to create a new entry with a primary key or unique key that is already present in the database.
  Cause:
  
  
  Duplicate Key: The most common cause is that the key you are trying to insert already exists in the database. This could be due to:
  
  Manual entry of data that conflicts with existing records.
  A program or script that is attempting to insert data without checking for existing records.
  Data migration or upload processes that do not handle duplicates properly.
  
  
  
  Concurrency Issues: If multiple users or processes are trying to insert the same record simultaneously, one of them may succeed while the other fails due to the existing key.
  
  
  Incorrect Logic in Code: If you are using custom code (e.g., ABAP programs) to insert records, there may be a logic error that does not check for existing records before attempting to insert.
  
  
  Solution:
  
  
  Check for Existing Records: Before attempting to insert a new record, check if a record with the same key already exists. You can do this by querying the database table.
  
  
  Modify the Insert Logic: If you are using custom code, ensure that your logic includes checks for existing records. You can use the SELECT statement to check for the existence of the key before performing the INSERT.
  
  
  Handle Duplicates Gracefully: If duplicates are a possibility, consider implementing logic to either update the existing record (using UPDATE instead of INSERT) or to skip the insertion if the record already exists.
  
  
  Data Cleansing: If this error occurs during data migration or bulk uploads, ensure that the data being uploaded is cleansed and does not contain duplicates.
  
  
  Transaction Management: If concurrency is an issue, consider implementing transaction management to handle simultaneous inserts more effectively.
  
  
  Related Information:
  
  SAP Documentation: Refer to SAP's official documentation for more details on handling database operations and error messages.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check the structure of the table and the keys defined.
  Debugging: If you are working with custom code, use the debugger to step through the code and identify where the error occurs.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  By following these steps, you should be able to resolve the UX396 error and prevent it from occurring in the future.