The system status '&2' (&1) must not be maintained

What causes this issue?

The system status '&V2&' (technical name '&V1&') should be set or
reset.
There are, however, restrictions when setting the system status, as the
status administration is to be viewed as a part of Coding, and is
generally only called internally by the program.
Only a few statuses are exceptions of these restrictions. You can view
the restrictions <DS:REPO.CRM_STATUS_PROC_CHECK>here</>. The system
status '&V1&' is not included in this list.

System Response

The status is not changed.

How to fix this error?

There is probably a program error (function module CRM_ORDER_MAINTAIN
was called incorrectly for maintenance of CRM documents).

Procedure for System Administrators

Check whether the interface table IT_STATUS is correctly filled when
calling the function module. If this table is filled by the program in
SAP standard, notify the SAP hotline.

Error message extract from SAP system. Copyright SAP SE.