Upload a list of devices
You can use the Step-by-step guide to upload devices, but you can also upload the in the Devices tab.
Devices need to meet these requirements:
Windows 10, version 1703 or later.
New devices that have not been through Windows out-of-box experience.
In the Microsoft 365 Business Admin center, choose Deploy Windows with AutoPilot on the Device actions card.
On the Prepare Windows page, choose the Devices tab > Add devices.
On the Add devices panel, browse to a CSV file that you have prepared > Save > Close.
You can get this information from your hardware vendor, or you can use the Get-WindowsAutoPilotInfo PowerShell script that will generate a csv file.
Assign a profile to a device or a group of devices
On the Prepare Windows page, choose the Devices tab and check the check box next to one or more devices.
On the Device panel, select a profile from the Assigned profile drop-down.
If you don't have any profiles yet, see Create and edit AutoPilot profiles for instructions.