How To Fix /SEHS/DG_DGA129 - A data record with this key already exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /SEHS/DG_DGA -

• Message number: 129

• Message text: A data record with this key already exist

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SEHS/DG_DGA129 - A data record with this key already exist ?

  The SAP error message /SEHS/DG_DGA129 A data record with this key already exists typically indicates that you are trying to create or insert a new record in the database, but a record with the same key already exists. This is a common issue in database management systems where unique constraints are enforced on certain fields.
  Cause:
  
  
  Duplicate Key: The most common cause is that the key you are trying to use for the new record already exists in the database. This could be due to:
  
  Manual entry of the same data.
  A process that is attempting to insert the same record multiple times.
  Data migration or import processes that are not handling duplicates correctly.
  
  
  
  Incorrect Logic in Custom Code: If there is custom ABAP code or enhancements that are inserting records, there may be logic errors that lead to attempts to insert duplicates.
  
  
  Concurrency Issues: If multiple users or processes are trying to insert the same record simultaneously, it can lead to this error.
  
  
  Solution:
  
  
  Check for Existing Records: Before attempting to create a new record, check if a record with the same key already exists. You can do this by querying the database table directly.
  
  
  Modify the Key: If the key is meant to be unique, consider modifying the key value for the new record to ensure it does not conflict with existing records.
  
  
  Error Handling in Custom Code: If you are using custom ABAP code, implement error handling to catch this specific error and handle it gracefully, such as by notifying the user or logging the error.
  
  
  Review Data Migration Processes: If this error occurs during data migration, review the migration logic to ensure it correctly handles existing records and does not attempt to insert duplicates.
  
  
  Concurrency Control: If the issue is due to concurrent inserts, consider implementing locking mechanisms or using transactions to manage concurrent access to the database.
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to check transaction codes related to the specific module you are working with (e.g., SE11 for Data Dictionary, SE80 for Object Navigator).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If you have access to the development environment, you can debug the process to see where the duplicate key is being generated or attempted to be inserted.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation.