Allocate, pick, pack, and hold items for a particular order on different releases in a trackable location in your warehouse. Cherry-pick any of those items for partial delivery. Merge any or all releases when customer needs certain items or the order is complete. Keep track of and manage all pack and holds in one consolidated view.
Need to ship before an item is fully received or your system is adjusted? Force out a release even when stock is not available and get the items to your customer immediately.