How To Fix ESH_EX018 - Technical error on test connection

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_EX - Extraction

• Message number: 018

• Message text: Technical error on test connection

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_EX018 - Technical error on test connection ?

  The SAP error message ESH_EX018 indicates a technical error encountered during a test connection, typically related to the Enterprise Search (ESH) component in SAP systems. This error can arise due to various reasons, and addressing it usually involves checking configurations and system settings.
  Possible Causes:
  
  Incorrect Configuration: The connection settings for the Enterprise Search might be incorrectly configured, such as wrong hostnames, ports, or credentials.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the search engine or the relevant service.
  Service Availability: The search service or the underlying database might be down or not running.
  Authorization Issues: The user account used for the connection might not have the necessary permissions to access the search service.
  System Resource Limitations: Insufficient system resources (like memory or CPU) could lead to failures in establishing a connection.
  Version Compatibility: There might be compatibility issues between the SAP system and the search engine version.
  
  Solutions:
  
  
  Check Configuration Settings:
  
  Verify the connection parameters in the ESH configuration (transaction code: /IWFND/MAINT_SERVICE or similar).
  Ensure that the hostname, port, and credentials are correct.
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or telnet to check if the SAP system can reach the search engine or service.
  Ensure that firewalls or network policies are not blocking the connection.
  
  
  
  Check Service Status:
  
  Ensure that the search service is running and accessible.
  Restart the service if necessary.
  
  
  
  Review User Authorizations:
  
  Check the user roles and authorizations to ensure that the user has the necessary permissions to access the search service.
  
  
  
  Monitor System Resources:
  
  Check the system logs and performance metrics to ensure that there are sufficient resources available.
  Consider increasing resources if the system is under heavy load.
  
  
  
  Check for Updates:
  
  Ensure that both the SAP system and the search engine are updated to compatible versions.
  Apply any relevant patches or updates.
  
  
  
  Review Logs:
  
  Check the application logs (transaction code: SLG1) for more detailed error messages that can provide additional context.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to ESH_EX018.
  Documentation: Review the official SAP documentation for Enterprise Search for configuration guidelines and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups for shared experiences and solutions from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.