@Mayank Nisar Thanks for reaching out to Microsoft Q&A, apologize for any inconvenience caused on this.
Based on the shared information, I have looked at the backend logs of the notification hub(wf-mole1) and below are the couple of observations:
- I see the push notifications to APNS are failing with error due to the certificate expiry. Could you please check and renew the certificate.
- Other push notifications are failing with 403 error. As per the REST API documentation 403 Response code means either quota has exceeded or message too large or rejected. Try send the notification with less message/payload and see whether it works.
Feel free to reach back to me If you have any further questions on this.