How To Fix ESH_REMSEARCH021 - Connection ID must not be changed

ESH_REMSEARCH021 - Overview

• Message type: E = Error

• Message class: ESH_REMSEARCH - ES Remote Search

• Message number: 021

• Message text: Connection ID must not be changed

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.

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ESH_REMSEARCH021 - Details

• The SAP error message ESH_REMSEARCH021 ("Connection ID must not be changed") typically occurs in the context of the SAP Enterprise Search (SAP ESH) when there is an issue with the connection ID used for remote search services. This error indicates that the connection ID being used in a search request is not valid or has been altered in a way that is not permitted.
  Causes:
  
  Incorrect Configuration: The connection ID may have been incorrectly configured in the system settings or in the search application.
  Changes in Connection ID: If the connection ID was changed after it was initially set up, the system may not recognize the new ID.
  System Updates or Migrations: Changes due to system upgrades or migrations can sometimes lead to inconsistencies in connection IDs.
  Authorization Issues: The user may not have the necessary permissions to access the connection ID being used.
  
  Solutions:
  
  Check Configuration: Verify the configuration settings for the connection ID in the