Document type &1 cannot be used

What causes this issue?

Only document types for which the following has been defined in
Customizing are allowed:
They must be linked to the <DS:DE.DOKOB>object </>NMQMEL (general
message).
The <DS:DE.CREATE_DOC>creation </>of documents must be allowed.
The <DS:DE.NUMVG>number assignment </>must use an <DS:DE.INUMNR>internal
number range</>.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.