Follow steps below to easily setup your APN Development SSL Certificate and
Production SSL Certificate for Apple Push notification Services :
Step 1 : Go to Apple Developer portal and click on Account
Step 2 : If you have an Apple Developer account, login, else create one by clicking on Create yours now
Step 3 : Click on Certificates, Identifiers & Profiles
Step 4 : Go to Identifiers
Step 5 : Here you will see all your apps. Select the Bundle ID of your desired app
Step 6 : Click on Configure in Push Notifications
Step 7 : Click on Create Certificate under Development SSL Certificate and Production SSL Certificate
Step 8 : Click on Choose File to upload CSR file
Note : You can follow our tutorial "How to get CSR File?" to easily obtain the CSR file
Step 9 : Once done, click on Continue
Step 10 : Repeat from steps 1 to create Production SSL Certificate
Step 11 : Click on Download to download the certificate