Final answer:
Vendor acknowledgements are sent to confirm the order details.
Step-by-step explanation:
Vendor acknowledgements are sent to vendors to notify them that their orders have been accepted and to inform them of the expected delivery date. The purpose of sending vendor acknowledgements is to confirm the order details. By sending these acknowledgements, both the vendor and the buyer can ensure that the correct products are being ordered and that there are no misunderstandings or errors in the order.