How To Fix ESH_ADM_MSG159 - Search connectors exist -> TREX dest / HANA connection cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_ADM_MSG - ESH Administration and Monitoring Tool

• Message number: 159

• Message text: Search connectors exist -> TREX dest / HANA connection cannot be changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_ADM_MSG159 - Search connectors exist -> TREX dest / HANA connection cannot be changed ?

  The SAP error message ESH_ADM_MSG159 indicates that there are existing search connectors associated with the TREX destination or HANA connection that you are trying to change. This error typically arises in the context of the SAP Enterprise Search (SAP ESH) configuration, where the system prevents changes to connections that are actively being used by search connectors.
  Cause:
  The primary cause of this error is that the system has detected that there are search connectors configured to use the TREX destination or HANA connection you are attempting to modify. Since these connectors rely on the existing configuration, the system restricts changes to ensure that the search functionality remains intact.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Existing Search Connectors:
  
  Go to the SAP ESH administration area (transaction code Esh_admin).
  Check the list of search connectors that are currently configured and see which ones are using the TREX destination or HANA connection you want to change.
  
  
  
  Modify or Delete Search Connectors:
  
  If you need to change the connection, you may need to either modify the existing search connectors to point to a different TREX destination or HANA connection or delete the connectors if they are no longer needed.
  Ensure that you have a backup or a plan for any connectors you delete, as this may impact search functionality.
  
  
  
  Change the Connection:
  
  Once you have removed or modified the search connectors, you should be able to change the TREX destination or HANA connection without encountering the error.
  
  
  
  Recreate Search Connectors:
  
  If you deleted any connectors, you may need to recreate them after making the necessary changes to the connection.
  
  
  
  Test the Configuration:
  
  After making the changes, test the search functionality to ensure that everything is working as expected.
  
  
  
  Related Information:
  
  Documentation: Refer to the SAP Help Portal for detailed documentation on configuring SAP Enterprise Search and managing search connectors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as Esh_admin for administration tasks related to Enterprise Search.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates related to this error message.
  
  By following these steps, you should be able to resolve the error and successfully change the TREX destination or HANA connection as needed.