Renew Apple MDM Push Cert
browse to the following section
- Endpoint manager
- Devices
- Enroll devices
- Apple Enrolment
- Apple MDM Push Certificate
All options needed are on this window and is very simple. Apple MDM cert creation creds are the same as business manager.
Step 4 on endpoint manger is the empircadmin address.
https://docs.microsoft.com/en-gb/mem/intune/enrollment/apple-mdm-push-certificate-get