Batch servers need a push certificate to communicate with Apple Push Notification Services (APNS). There are two kinds of certificates you can use with Batch: a .p8 file or a .p12 certificate, which expires after 12 months.
If you stopped receiving push notifications and an error message appeared in the campaigns list, your .p12 certificate probably expired.
Here is how to generate a .p8 file for your app in two easy steps:
1. Download The .P8 File
First, generate and download a new .P8 file:
Go to the Apple Developer Member center
go to the "Keys" menu
add a new key.
Give a name to your key
tick the "Apple Push Notifications Service" box
download the .p8 file.
2. Upload the .p8 file
On Batch dashboard, go to Settings → Push settings, and upload your .p8 file.
You will need to paste two IDs to be able to use your new certificate:
🚧 Important note: Make sure you used the correct IDs.
We recommend you try sending a push to your device after uploading that new certificate.