Lock a Shipping Price
This FAQ will go over how to lock a shipping price. The ability to lock a shipping price was primarily added so that a zero shipping price can be locked in on a particular order.
To do this, click the lock button beside the freight field.
Clicking it will lock the freight amount so that it cannot be changed from anywhere in Paradigm or dispatching unless it is unlocked. In order to unlock the freight field, click on the lock button again.