Receive a Transfer
Close the second half, and treat a difference between sent and received as a real finding.
Stock in transit belongs to no depot until this step. Receiving is what makes it sellable again.
Receive it
Open the transfer at the destination
It appears at the receiving depot as expected stock, with the status still In Transit.

Count what actually arrived
Against what was sent. This is the same discipline a purchase receive asks for, and for the same reason.
Receive it
The units land at the destination and become available there. The status moves to Received.
The in-transit state
| Figure | At the source | In transit | At the destination |
|---|---|---|---|
| Counted in your total | Yes | Yes | Yes |
| Available to sell | Yes | No | Yes |
| Physically present | Yes | No | Yes |
In transit is the row worth understanding: the stock is still yours and still valued, and nobody can sell it.