Aaron Studio · Understanding labOriginal teaching model · Local preview

The work happened.
The reply didn't.

Ten items. A request reserves three, but its confirmation is lost. Before you retry, predict what should happen.

Remaining stock
10of 10 items
The pieces show this model's actual state. They do not represent a real warehouse.
Change a condition

Same request.
One saved receipt?

Send request A once. Its first confirmation will be lost.
No saved receipts.
Request identity→Reserve stock→Save receipt→Reply to sender
What actually happened in this model