Data target &1 not found. See long text.

What causes this issue?

The data target &1& does not exist. This could happen due to one of the
following -
1. The Admin Cockpit content is not installed correctly/completely.
2. A configuration setting is not maintained correctly.

System Response

Since no data target was found, no data was deleted.

How to fix this error?

Depending on the reason above, do one of the following -
1. Install Admin Cockpit (note 934848).
2. Ensure that the table RSTCCADMIN has correct entries (note 1128219).

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.