Which function provides available quantities of the requested product and delivery due dates in response to customer inquiries?

• A. MRP II
• B. ATP
• C. ERP
• D. MPS

Answer: (B)

Available-to-promise (ATP) is the function that provides the available quantities of the requested product along with delivery due dates in response to customer inquiries. It determines how much can be promised now by examining on-hand inventory, scheduled receipts, and current allocations, then projecting the earliest possible delivery date for the promised quantity. This capability is exactly what sales teams need to respond quickly to customers about what can be delivered and when. Other approaches like MRP II focus on coordinating resources to meet plans, MPS outlines the production schedule, and ERP covers broader enterprise processes; none are as directly focused on promising a specific quantity by a specific date to customers as ATP.