How To Fix ESH_REMSEARCH004 - Connection not found

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_REMSEARCH - ES Remote Search

• Message number: 004

• Message text: Connection not found

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 ESH_REMSEARCH004 - Connection not found ?

  The SAP error message ESH_REMSEARCH004: Connection not found typically occurs in the context of the SAP Enterprise Search (SAP ESH) when the system is unable to establish a connection to the relevant search service or backend system. This can happen for various reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Incorrect Configuration: The connection settings for the search service may not be configured correctly in the SAP system.
  Service Not Running: The search service or the backend system that the search service is trying to connect to may not be running.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the search service.
  Authorization Issues: The user may not have the necessary authorizations to access the search service.
  System Updates or Changes: Recent updates or changes in the system configuration may have affected the connection settings.
  
  Solutions:
  
  
  Check Configuration:
  
  Go to the SAP system and check the configuration settings for the search service. Ensure that the connection parameters (like host, port, etc.) are correctly set.
  You can check the settings in transaction SLG1 for logs related to the search service.
  
  
  
  Verify Service Status:
  
  Ensure that the search service is up and running. You can check this in the relevant transaction or by using the SAP NetWeaver Administrator (NWA).
  If the service is down, restart it and check if the issue persists.
  
  
  
  Network Connectivity:
  
  Test the network connection between the SAP system and the search service. You can use tools like ping or telnet to verify connectivity.
  Check for any firewall settings that might be blocking the connection.
  
  
  
  User Authorizations:
  
  Verify that the user has the necessary authorizations to access the search service. You can check the user roles and authorizations in transaction SU01.
  
  
  
  Review System Logs:
  
  Check the system logs for any additional error messages or warnings that might provide more context about the issue. Use transaction SM21 to view the system log.
  
  
  
  Reconfigure the Connection:
  
  If the configuration seems to be incorrect, you may need to reconfigure the connection settings for the search service.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation or notes related to the specific version of SAP you are using for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the error message ESH_REMSEARCH004. You can search for relevant notes in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Monitoring: Implement monitoring for the search service to proactively catch issues before they affect users.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.