How To Fix ESH_TREX_ADMIN109 - Found duplicate key values &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_TREX_ADMIN - TREX Indexing and Index Administration

• Message number: 109

• Message text: Found duplicate key values &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_TREX_ADMIN109 - Found duplicate key values &1 ?

  The SAP error message ESH_TREX_ADMIN109 indicates that there are duplicate key values in the context of the SAP Enterprise Search (TREX) administration. This error typically arises when there are inconsistencies in the data being indexed or when there are issues with the configuration of the search system.
  Cause:
  
  Duplicate Entries: The most common cause is that the data being indexed contains duplicate entries for a key field that should be unique.
  Configuration Issues: There may be misconfigurations in the TREX settings or the data source configuration that lead to the generation of duplicate keys.
  Data Source Problems: If the data source itself has duplicates or if there are issues with the extraction process, this can lead to duplicates being sent to TREX.
  
  Solution:
  
  
  Identify Duplicates: 
  
  Check the data source for duplicate entries. You can run queries or use tools to identify duplicates in the data that is being indexed.
  Ensure that the key fields defined in the data source are indeed unique.
  
  
  
  Adjust Data Source Configuration:
  
  If duplicates are found, you may need to adjust the data extraction logic to ensure that only unique records are sent to TREX.
  Review the configuration of the data source in the SAP system to ensure it is set up correctly.
  
  
  
  Re-indexing:
  
  After resolving the duplicates, you may need to re-index the data in TREX. This can be done through the TREX administration tools.
  Use the TREX administration interface to trigger a re-indexing of the affected data.
  
  
  
  Check TREX Settings:
  
  Review the TREX settings to ensure that they are configured correctly for your use case. This includes checking the indexing settings and ensuring that the key fields are defined properly.
  
  
  
  Consult Logs:
  
  Check the TREX logs for more detailed error messages that can provide additional context on the issue.
  
  
  
  Related Information:
  
  TREX Administration: Familiarize yourself with the TREX administration tools and how to manage data sources and indexing.
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on handling duplicate keys in TREX.
  Documentation: Review the official SAP documentation for Enterprise Search and TREX for best practices on data management and indexing.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.