Disconnect APNs

 ㅤ   You now have the ability to disconnect your Apple Push Notification service (APNs) certificate if you need to completely replace it with one that has a new Topic ID.

You should disconnect your APNs certificate only if you need to replace it with a new certificate. Replacing your APNs certificate with a new one will break MDM communication with your enrolled Apple devices. You will need to re-enroll all devices under the new APNs certificate.