How To Fix ESH_SEARCH199 - Duplicate key indexing next by instance: Node ID &1, record &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_SEARCH - ESH Search

• Message number: 199

• Message text: Duplicate key indexing next by instance: Node ID &1, record &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_SEARCH199 - Duplicate key indexing next by instance: Node ID &1, record &2 ?

  The SAP error message ESH_SEARCH199 indicates a problem related to duplicate key indexing in the SAP Enterprise Search (ESH) system. This error typically arises when the system encounters duplicate entries for a key that should be unique, which can disrupt the indexing process.
  Cause:
  
  Duplicate Records: The most common cause of this error is the presence of duplicate records in the data source that is being indexed. This can happen if the data source has not been properly cleaned or if there are issues with data integrity.
  Incorrect Configuration: Misconfiguration in the indexing settings or the data model can also lead to this error.
  Data Source Issues: If the data source (like a database table) has been modified or updated incorrectly, it may lead to duplicates being present.
  
  Solution:
  
  
  Identify Duplicates: 
  
  Check the data source for duplicate entries. You can run SQL queries or use SAP tools to identify records that have the same key.
  Use transaction codes like SE16 or SE11 to inspect the relevant tables.
  
  
  
  Data Cleanup:
  
  Once duplicates are identified, you will need to clean up the data. This may involve deleting or merging duplicate records to ensure that each key is unique.
  Ensure that the data integrity is maintained after cleanup.
  
  
  
  Re-indexing:
  
  After resolving the duplicates, you may need to re-index the data. This can typically be done through the ESH administration tools or relevant transaction codes.
  Use transaction code /IWFND/MAINT_SERVICE to manage and re-index services if necessary.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the ESH and ensure that they are set up correctly to prevent future duplicates.
  Ensure that the data model is correctly defined and that the unique keys are properly configured.
  
  
  
  Monitoring and Logging:
  
  Enable logging and monitoring to catch any future occurrences of this error early. This can help in identifying the root cause if it happens again.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review the SAP documentation for Enterprise Search to understand the indexing process and best practices for data management.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By addressing the root cause of the duplicates and ensuring proper configuration, you should be able to resolve the ESH_SEARCH199 error effectively.