Devices or units? This page is about devices, the tracking hardware installed in a vehicle or on an asset. For the vehicles and assets on the map, see Units. For the difference, see Devices and units.
Allocate a device when a sub-dealer takes over trackers from your stock. The device moves to the sub-dealer's devices list, and you still see it in yours.
In the side menu, select Devices.
The Devices list opens.
On the device's row, select Allocation, marked 1.

The Reallocate To dialog opens.
In Device Reallocate To, choose the account, for example Delta Fleet Partners.
Optional: tick Transfer Including Sim Cards to move the SIM cards too.
Select Allocate, marked 1.

The app shows "Device allocated successfully" and the list reloads.
To move many devices at once, tick them in the list and use Allocation in the bar above it. That route does not ask about units. See Act on many devices at once.
If the device reports for a unit, the app asks before it moves it. The question names the unit: "This device is already allocated to {unit} unit, do you really want to reallocate it?"

Open the device with Edit or View.
Select Device Allocation.
The dialog lists the device's allocations, newest first.

Optional: in Date Range, choose a period.
Optional: select Search.
The table shows the allocations in that period.
Select Close.
The allocation without an End Date is the current one.