Final answer:
The portion of projected inventory which enables marketing to make realistic commitments about delivery dates for new orders is known as available-to-promise inventory.
Step-by-step explanation:
The portion of projected inventory which enables marketing to make realistic commitments about delivery dates for new orders is known as available-to-promise inventory. This inventory represents the quantity of goods that a company can promise to deliver to customers by a specified date.
For example, let's say a company has projected inventory of 100 units and they know they can deliver 80 units by a certain date. In this case, the available-to-promise inventory would be 80 units.
This term is used to ensure that marketing departments can accurately communicate delivery dates to customers based on the inventory available for production and delivery.