Number range not processed

What causes this issue?

You have saved order type &V1&, but have not yet assigned this order
type to a number range group.

System Response

Order type &V1& has been saved, but you cannot yet create an order with
this order type.

How to fix this error?

Assign order type &V1& to a number range group.

Error message extract from SAP system. Copyright SAP SE.