I have downloaded my app through TestFlight and have allowed push notifications for my app through TestFlight. (as shown in the picture)
I have used this: https://github.com/Altaibaatar/APNS-with-auth-key-p8-using-PHP to trigger push notifications to my app. Additional changes I have made to the code: using (production) https://api.push.apple.com/3/device instead of (development) https://api.development.push.apple.com/3/device. When I triggered the script, it returns a "200" status code but I have not seen any notifications.
Is there anything wrong with the script I am running or have I missed a step to implement push notifications? Thank you in advance!