I totally agree with Felix.
And if you turn of that automatic functionality, you’ll have another problem:
When you receive, the items are placed on inventory. And items on inventory may be sold - to another customer than is was intented to.
DropShipment in NAV means that an item is posted into the inventory and posted out again immediately, and an applacation (=direct link ) is made between those tho Item Ledger Entries.
Is this is not an issue to you, you should not use NAV’s DropShipment.