Attempt to set up connection to &1 &2 failed

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

How to fix this error?

Check that the program &V1& is started with RFC destination &V2&. The
RFC destination for the batch client is maintained in Customizing.

Procedure for System Administrators

In the Customizing activity <LS>Specify Environment Parameters for
Back-End Processes</>, ensure the settings for the parameter
<ZH>BATCH_CLIENT_RFC_DEST</> are correct.

Error message extract from SAP system. Copyright SAP SE.