Existing number range information will be deleted

What causes this issue?

You have selected the entry parameter of a document number with no
number range or deactivated the number assignment.
Number range information (number range object or number in the number
range) already exists for this entry, however. This number range
information is therefore invalid and will be removed.

System Response

The system removes the existing number range information for this entry
from the print control for foreign trade messages.

Error message extract from SAP system. Copyright SAP SE.