How To Fix FICO1151 - Duplicate key in table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FICO1 -

• Message number: 151

• Message text: Duplicate key in table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FICO1151 - Duplicate key in table &1 ?

  The SAP error message FICO1151, which indicates a "Duplicate key in table &1," typically occurs in the Financial Accounting (FI) and Controlling (CO) modules when there is an attempt to insert or update a record in a database table that would result in a duplicate entry for a key that must be unique.
  Cause:
  
  
  Duplicate Entries: The most common cause is that the system is trying to insert a record that already exists in the specified table. This could happen due to:
  
  Manual data entry errors.
  Data migration issues where the same data is being imported multiple times.
  Incorrect configuration or programming logic in custom developments or enhancements.
  
  
  
  Concurrency Issues: If multiple users or processes are trying to insert the same record simultaneously, it can lead to this error.
  
  
  Data Integrity Violations: The error may also arise from violations of data integrity constraints defined in the database schema.
  
  
  Solution:
  
  
  Identify the Duplicate Entry: 
  
  Check the specific table mentioned in the error message (replace &1 with the actual table name).
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to view the contents of the table and identify the duplicate records.
  
  
  
  Data Cleanup: 
  
  If duplicates are found, you may need to delete or correct the duplicate entries to ensure that only unique records exist in the table.
  
  
  
  Review Data Entry Processes: 
  
  Ensure that data entry processes are robust and include checks to prevent duplicates.
  If data is being imported, review the import logic to ensure it does not attempt to insert existing records.
  
  
  
  Check Custom Code: 
  
  If there are custom programs or enhancements that interact with the table, review the code to ensure it handles duplicates appropriately.
  
  
  
  Locking Mechanisms: 
  
  Implement proper locking mechanisms if concurrent processes are causing the issue.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on best practices.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE16, and SE37 (for function modules) to analyze and troubleshoot the issue.
  Database Constraints: Understand the unique constraints defined on the table to better grasp why the error is occurring.
  SAP Community: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the FICO1151 error effectively.