If we define a Availability Control
neither Auto nor Manual Reservation and
the same for Order Issue
but let them nettable.

What should the rollup of Usable Qty or Not Available Qty show?
We got some parts back form project construction site and protected them,
MRP is considering the qty, no PR is created.
The Requisitioner of a Customer Order don’t see the reason directly in both screens.
Inventory Part Availability Planning - Group Quantities - Usable Qty / Available Qty no difference
Inventory Part Currently On Hand - Groups Available / Not Available - nothing pointing to this set up
So we are missing the consideration for No Reservation / No Issue as information on both pages and in the calculation of how many we can really use regarding the Availability Control set up.
Or a Warning about parts protected by Availability Control or a toggle to switch the rollup calculation method.
Do we miss something?