Can use iCloud

"Can use iCloud: ho can I fix the multiple iCloud account on one device"

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Multiple Apple IDs On One Device:

The only way to have multiple Apple IDs on a device is by assigned one to your Mac, and one to a Virtual Machine. So, what's the device? Where are you seeing this? Are you the original owner? Is this a used device?

Your phone has reached the limit on the number of iCloud accounts that you can create in one year. See this for more information.

If you see a Could Not Create Apple ID or Could Not Set Up iCloud message – Apple Support (UK)

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