How To Fix 5E591 - Key &1 has been ignored because it already exists in table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 5E - Error messages for Spanish infotypes module pools

• Message number: 591

• Message text: Key &1 has been ignored because it already exists in table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5E591 - Key &1 has been ignored because it already exists in table &2 ?

  The SAP error message 5E591 indicates that a key (denoted as &1) is being ignored because it already exists in the specified table (denoted as &2). This typically occurs during data insertion or updates when there is an attempt to add a duplicate entry to a table that has a unique constraint on that key.
  Cause:
  
  
  Duplicate Key Entry: The most common cause of this error is that the system is trying to insert a record with a key that already exists in the database table. This can happen due to:
  
  Manual data entry errors.
  Data import processes that do not check for existing records.
  Incorrect logic in custom programs or reports that handle data manipulation.
  
  
  
  Data Consistency Issues: If there are inconsistencies in the data being processed (e.g., during migrations or data uploads), it can lead to attempts to insert duplicate keys.
  
  
  Solution:
  
  
  Check Existing Records: Before attempting to insert or update records, check the existing entries in the table to ensure that the key does not already exist. You can do this by querying the table directly.
  
  
  Modify Data Input Logic: If the error arises from a custom program or data upload, modify the logic to handle duplicates appropriately. This could involve:
  
  Skipping the insertion if the key already exists.
  Updating the existing record instead of inserting a new one.
  Logging the occurrence of duplicates for further analysis.
  
  
  
  Data Cleansing: If the error is due to data import, ensure that the data being imported is cleansed and validated to remove duplicates before the import process.
  
  
  Error Handling: Implement error handling in your programs to catch this specific error and take appropriate actions, such as notifying the user or logging the error for review.
  
  
  Related Information:
  
  Unique Constraints: Understand the unique constraints defined on the table in question. This will help you identify which fields are causing the duplication.
  Transaction Logs: Review transaction logs or change logs to see the history of changes made to the table, which can help identify when and how duplicates were introduced.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific recommendations or fixes provided by SAP.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future.