To assign a device to Fleetsmith manually in the Apple DEP portal:
1. Visit the DEP portal at deploy.apple.com and sign in.
2. Click "Manage Devices" in the left sidebar:
3. Select "Serial Number" under "Choose Devices By".
4. Paste the Serial Number of the device you want to assign to Fleetsmith in the box. If you have multiple, separate the Serial Numbers with commas.
5. Under the "Choose Action" section, select "Assign to Server", then choose Fleetsmith from the second dropdown:
6. Click the "OK" button.