Reservation for & is not possible. (Choose another movement type)

What causes this issue?

Goods movements with <GL:movement_type>movement type</> &V1& cannot be
planned via <GL:reservation>reservations</>.

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?

Enter a different movement type or enter the goods movement without a
reservation.

Error message extract from SAP system. Copyright SAP SE.