How To Fix >U039 - Reference key &1 is not unique, display function is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 039

• Message text: Reference key &1 is not unique, display function is not possible

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 >U039 - Reference key &1 is not unique, display function is not possible ?

  The SAP error message U039: Reference key &1 is not unique, display function is not possible typically occurs when you are trying to display a record in SAP that has a reference key (like a document number, order number, etc.) that is not unique in the database. This means that there are multiple entries in the database that match the reference key you are trying to access, and SAP cannot determine which one to display.
  Causes:
  
  Duplicate Entries: There are multiple records in the database with the same reference key.
  Data Integrity Issues: There may be issues with data integrity, where the system has allowed duplicate entries due to improper configuration or data entry.
  Configuration Errors: The system may not be configured correctly to enforce uniqueness for certain fields.
  
  Solutions:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to check the underlying table for duplicate entries using the reference key.
  Identify the records that are causing the issue.
  
  
  
  Data Cleanup:
  
  If duplicates are found, you may need to clean up the data. This could involve deleting or merging duplicate records, depending on your business requirements.
  Ensure that the data is consistent and that only unique entries exist for the reference key.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the object you are working with. Ensure that the uniqueness constraints are properly set up in the relevant tables.
  If necessary, consult with your SAP Basis or technical team to adjust the configuration.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module you are working with. There may be known issues or patches available that address this problem.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. Provide them with the error message and any relevant details about the situation.
  
  
  
  Related Information:
  
  Transaction Codes: SE16 (Data Browser), SE11 (Data Dictionary), and SE78 (SAP Archive Link) can be useful for checking data.
  Tables: Identify the specific table related to the reference key to analyze the data.
  SAP Notes: Search for SAP Notes related to the error message or the specific module you are working with for additional guidance.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.