How To Fix ESH_CHECK_CONN090 - There are duplicate local connections. No check for connector &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_CHECK_CONN - Check connector consistency

• Message number: 090

• Message text: There are duplicate local connections. No check for connector &1

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

There are duplicate connections in table ESH_ADM_RFC_CONN for the local
system.

How to fix this error?

Use task list SAP_ESH_RESET in the working client to reset Enterprise
Search to initial state. To setup Enterprise Search again use task list
SAP_ESH_INITIAL_SETUP_WRK_CLIENT.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_CHECK_CONN090 - There are duplicate local connections. No check for connector &1 ?

  The SAP error message ESH_CHECK_CONN090 indicates that there are duplicate local connections in the system, which prevents the system from performing a check for the specified connector. This error typically arises in the context of the SAP Enterprise Search (SAP ESH) or when dealing with the SAP HANA database.
  Cause:
  The error is caused by the presence of multiple connections that have the same name or identifier in the system. This can happen due to:
  
  Incorrect configuration of connections in the SAP system.
  Manual duplication of connection entries.
  Migration or upgrade processes that may have inadvertently created duplicate entries.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Identify Duplicate Connections:
  
  Go to the transaction code /IWFND/MAINT_SERVICE or /IWFND/ERROR_LOG to check for existing connections.
  Use the transaction SE11 to check the relevant database tables for connection entries.
  
  
  
  Remove or Rename Duplicates:
  
  If you find duplicate entries, you can either delete the unnecessary duplicates or rename them to ensure that each connection has a unique identifier.
  Ensure that you have the necessary authorizations to make changes to the connection settings.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the connectors in the SAP ESH settings. Ensure that each connector is correctly configured and does not point to duplicate connections.
  
  
  
  Restart Services:
  
  After making changes, restart the relevant services or the entire SAP system to ensure that the changes take effect.
  
  
  
  Test the Connection:
  
  After resolving the duplicates, test the connection to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Refer to the SAP Help Portal for documentation on configuring connections and troubleshooting SAP ESH issues.
  Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By addressing the duplicate connections, you should be able to resolve the ESH_CHECK_CONN090 error and restore normal functionality to your SAP system.