How To Fix /EACC/DMEXTR002 - DataSource &1 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /EACC/DMEXTR -

• Message number: 002

• Message text: DataSource &1 is 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /EACC/DMEXTR002 - DataSource &1 is not unique ?

  The SAP error message /EACC/DMEXTR002 DataSource &1 is not unique typically occurs in the context of data extraction processes, particularly when working with SAP Data Services or SAP BW (Business Warehouse). This error indicates that the system has encountered multiple entries for the specified DataSource, which should be unique.
  Cause:
  
  Duplicate DataSource Entries: The most common cause of this error is that there are multiple entries for the same DataSource in the system. This can happen due to incorrect configuration or data entry.
  Incorrect DataSource Configuration: If the DataSource is not properly configured or if there are inconsistencies in the metadata, it can lead to this error.
  Transport Issues: If DataSources were transported from one system to another, it might lead to duplicates if not handled correctly.
  
  Solution:
  
  
  Check for Duplicates:
  
  Go to the DataSource maintenance transaction (e.g., RSA1 for BW) and check if there are multiple entries for the DataSource in question.
  If duplicates are found, you will need to delete or deactivate the unnecessary entries.
  
  
  
  Review DataSource Configuration:
  
  Ensure that the DataSource is correctly configured and that all necessary fields are set up properly.
  Check the DataSource settings in the relevant application (e.g., SAP BW, SAP Data Services) to ensure there are no inconsistencies.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, review the transport logs to ensure that the DataSource was transported correctly.
  If necessary, re-transport the DataSource or manually correct the entries in the target system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific DataSource and the error message for any additional troubleshooting steps or known issues.
  
  
  
  System Check:
  
  If the issue persists, consider checking the system for any inconsistencies or errors that might be affecting the DataSource.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench) or RSO2 (DataSource Maintenance) to manage DataSources.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.
  Logs and Traces: Check system logs (SM21) and application logs (SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the issue related to the /EACC/DMEXTR002 DataSource &1 is not unique error message.