APNS notifications not reaching devices enrolled in Apple MDM

Question

Apple MDM is used. It is MDM using APNs.

• The topic of mobileconfig is the same as the thing of Subject of APSP-XXX.pem.
• The character string of a device token and PushMagic reached the MDM server after the setup of mobileconfig.

I sent wording of a telegram for device tokens using APNs. It is replacing by the character string of PushMagic. Although {"mdm":"xxxxxxxxxxxxx-xxxx-xxxx-xxxx"} is sent via APNs from the MDM server, iPhone is not reached.

Why is it?

Answer 1

Follow MDM_Protocol pdf very carefully.

If you are following this link: http://www.softhinker.com/in-the-news/iosmdmvendorcsrsigning Then verify few things.

remove the passphrase from customerPrivateKey.pem using this command

openssl rsa -in customerPrivateKey.pem -out PlainKey.pem

Then merge your APNS certificate (for example CustomerCompanyName.pem) downloaded from the portal https://identity.apple.com/pushcert/ using this command

cat CustomerCompanyName.pem PlainKey.pem > PlainCert.pem

Now this PlainCert.pem file can be used in your server as APNS/MDM certificate.

If still there is issue,please show here your device log.