How To Fix 09402 - LID & & not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: 09 -

• Message number: 402

• Message text: LID & & not unique

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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Smart SAP Assistant

• What is the cause and solution for SAP error message 09402 - LID & & not unique ?

  The SAP error message "09402 LID & & not unique" typically indicates that there is a problem with the uniqueness of a key field in a database table or a data entry process. This error often arises in scenarios where the system expects a unique identifier (like a logical ID or LID) but finds multiple entries that match the criteria, leading to ambiguity.
  Cause:
  
  Duplicate Entries: The most common cause is that there are duplicate entries in the database for the specified logical ID. This can happen due to incorrect data entry, data migration issues, or system errors.
  Configuration Issues: Sometimes, the configuration of the system may not enforce uniqueness properly, leading to multiple records being created with the same identifier.
  Data Integrity Issues: If there are issues with data integrity, such as incomplete transactions or failed updates, it can lead to duplicates.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to check the relevant database table for duplicate entries. You can run a query to find all records with the same logical ID.
  Data Cleanup: Once duplicates are identified, you may need to delete or merge the duplicate records to ensure that each logical ID is unique.
  Check Configuration: Review the configuration settings related to the logical ID to ensure that uniqueness constraints are properly set up.
  Data Validation: Implement data validation checks in your data entry processes to prevent duplicates from being created in the first place.
  Consult Documentation: Refer to SAP documentation or support for specific guidance related to the module or transaction you are working with.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser) and SE11 (Data Dictionary) to analyze the database tables.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex data integrity issues.
  
  By following these steps, you should be able to resolve the "09402 LID & & not unique" error in SAP.