How To Fix ESH_POST_INSTALL021 - RFC destination &1 for the CCMS agent already exists

ESH_POST_INSTALL021 - Overview

• Message type: E = Error

• Message class: ESH_POST_INSTALL - ESH Post Installation

• Message number: 021

• Message text: RFC destination &1 for the CCMS agent already exists

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_POST_INSTALL021 - Details

• The SAP error message ESH_POST_INSTALL021 indicates that there is an issue with the Remote Function Call (RFC) destination for the CCMS (Computing Center Management System) agent. Specifically, it means that the RFC destination specified already exists in the system, which can cause conflicts during the installation or configuration of the Enterprise Search (ESH) component.
  
  Cause:
  The error typically arises due to one of the following reasons:
  
  Duplicate RFC Destination: The RFC destination for the CCMS agent has already been created in the system, which prevents the installation process from proceeding.
  Incomplete Cleanup: Previous installation attempts may not have cleaned up properly, leaving behind existing configurations.
  
  Configuration Issues: There may be misconfigurations in the system that lead to the detection of an existing RFC destination.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing RFC Destinations:
  
  Go to transaction SM59 (RFC Destinations).
  Look for the RFC destination that corresponds to the CCMS agent. The name of the destination