Units Reserved by Model Stay Reserved

Reserving by asset model lets a booking hold "2 laptops" without choosing which two. That promise now holds against every other booking on the same dates, including ones that pick units by name.

What was missing

Shelf already stopped two model reservations from over-committing the same model. What it did not count was a unit named directly. Say a model has 3 laptops, 1 is in custody, and booking A reserves 2 by model. Booking B, on the same dates, could still add one of the 2 free laptops by name. Both bookings saved, and A was left needing 2 laptops from a pool that had 1.

What happens now

Whenever a unit is added to a booking by name, Shelf checks it against the model reservations on other bookings for those dates:

• In Manage assets, units of a fully reserved model show a Reserved by model badge and can't be ticked.
• Scanning such a unit onto a booking, on the web or in the Shelf Companion app, is refused.
• Reserving a draft that already holds one is refused, so a draft put together before the reservation existed can't slip past it.
• Extending a booking into a period where the model is fully reserved is refused if the booking holds a unit of it.

The refusal names the model and shows the count, for example "Dell Latitude 5550": 1 unit requested by name, but 2 units are reserved by model on other bookings for these dates and only 0 more can be booked.

A model with units to spare works as before, and a booking that reserves the model itself can still fill its own reservation by picking or scanning units of it.