You may have come across this message within Microsoft Intune stating Expiring, Renew in the apple Portal.
To fix this issue, you will need to download a new Token via Apple Business Manager:
Apple Business Manager
Visit https://business.apple.com & log in with your Managed apple account
Click your Username down the bottom left, and select Preferences
Under the heading Your MDM Servers, visit your linked Intune MDM instance & click Download Token
You will now have your token
Microsoft Endpoint Manager
Open the Microsoft Endpoint Manager > iOS/iPadOS > iOS/iPadOS enrollment > Enrollment program Tokens
Select your intune instance
Click Renew Token
Click the Folder icon and upload your .p7m token file located on your computer.
Then click Next and you’re done!
Click Create on the next screen and you’re done
And we’re all set
Set your self a Outlook calendar reminder for next year.
