Apple Push Notification Service certificate?
I got this email and don't understand it - can anyone guide me as to what it is, and what I need to do? I'm completely clueless about its meaning, and previous messages I've seen here about this issue are very unclear and don't help me.
The following Apple Push Notification Service certificate, created for AppleID xxxxx will expire on December 01, 2018. Revoking or allowing this certificate to expire will require existing devices to be re-enrolled with a new push certificate. Mobile Device Management - null Please contact your vendor to generate a new request (a signed CSR), then visit https://identity.apple.com/pushcert to renew your Apple Push Notification Service certificate. Thank You, Apple Push Notification Service |
MacBook Pro, macOS High Sierra (10.13.2), Since MacPlus, many of everything.