E!009 - Line &: Key exists once more

SAP Error Message - Details

• Message type: E = Error

• Message class: E! -

• Message number: 009

• Message text: Line &: Key exists once more

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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AnswerBot

• What is the cause and solution for SAP error message E!009 - Line &: Key exists once more ?

  The SAP error message E!009 "Line &: Key exists once more" typically occurs when there is an attempt to insert or update a record in a database table where a unique key constraint is violated. This means that the key you are trying to insert already exists in the database, and the system does not allow duplicate entries for that key.
  Cause:
  
  
  Duplicate Key Entry: The most common cause is that the data you are trying to enter already exists in the database table. This could be due to:
  
  Manual data entry errors.
  Data being imported from another system or file that contains duplicates.
  A process that is trying to create a record that already exists.
  
  
  
  Incorrect Logic in Custom Code: If there is custom ABAP code or a user exit that is not properly checking for existing records before attempting to insert a new one, this can lead to this error.
  
  
  Data Migration Issues: During data migration or data uploads, if the data is not properly cleansed or checked for duplicates, this error can occur.
  
  
  Solution:
  
  
  Check for Existing Records: Before inserting a new record, check the database table to see if the key already exists. You can do this by running a simple SELECT query in the database.
  
  
  Modify Data Entry Logic: If you are using custom code, ensure that there is logic in place to handle cases where a record already exists. This could involve updating the existing record instead of trying to insert a new one.
  
  
  Data Cleansing: If the error is occurring during data migration, ensure that the data being imported is cleansed of duplicates before the import process.
  
  
  Error Handling: Implement error handling in your code to catch this specific error and provide a user-friendly message or alternative action.
  
  
  Consult Documentation: If you are unsure about the specific table or key causing the issue, consult the SAP documentation or the data model for the application you are working with.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to check the structure of the table and the unique keys defined on it.
  Debugging: If you have access to the ABAP code, you can use the debugger to trace where the error is occurring and understand the context better.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.