How To Fix ESH_CHECK_CONN020 - Error while getting categories from the runtime buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_CHECK_CONN - Check connector consistency

• Message number: 020

• Message text: Error while getting categories from the runtime buffer

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_CHECK_CONN020 - Error while getting categories from the runtime buffer ?

  The SAP error message ESH_CHECK_CONN020 typically indicates an issue with the connection to the Enterprise Search (ESH) runtime buffer, which is used to retrieve categories for search functionalities. This error can arise due to various reasons, including configuration issues, connectivity problems, or inconsistencies in the search index.
  Causes:
  
  Configuration Issues: The Enterprise Search might not be properly configured, leading to issues in retrieving categories.
  Indexing Problems: If the search index is not updated or is inconsistent, it can cause errors when trying to access categories.
  Connection Problems: There may be network issues or problems with the connection to the backend system or the search service.
  Authorization Issues: The user may not have the necessary authorizations to access the categories in the search.
  Buffer Issues: The runtime buffer may be corrupted or not properly initialized.
  
  Solutions:
  
  
  Check Configuration:
  
  Verify the configuration settings for the Enterprise Search in the SAP system. Ensure that all necessary components are correctly set up.
  Check the settings in the ESH administration (transaction code: /IWFND/MAINT_SERVICE).
  
  
  
  Rebuild the Index:
  
  If the search index is suspected to be the issue, consider rebuilding it. This can often resolve inconsistencies.
  Use transaction code ESH_ADMIN to manage and monitor the indexing process.
  
  
  
  Check Connectivity:
  
  Ensure that the connection to the backend system is stable and that there are no network issues.
  Test the connection to the search service to ensure it is operational.
  
  
  
  Review Authorizations:
  
  Check the user roles and authorizations to ensure that the user has the necessary permissions to access the search categories.
  
  
  
  Clear the Buffer:
  
  If the runtime buffer is suspected to be corrupted, consider clearing it. This can sometimes resolve issues related to stale or corrupted data.
  
  
  
  Check Logs:
  
  Review the application logs (transaction code: SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as EHS_ADMIN, SLG1, and /IWFND/MAINT_SERVICE for managing and troubleshooting Enterprise Search.
  Documentation: Refer to the official SAP documentation for Enterprise Search for detailed configuration and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.