I am following this Microsoft Guide to migrate from GCM/FCM notifications to FCM v1. From the guide, I - Configured the Firebase Service Account Credentials in Azure Notification Hub Updaeted backend and app (Xamarin) to use FCM v1 platform during installation & registration of push notification Verified that the device is actually registered in notification hub (by getting registrations from notification hub) Verified that notification is delivered to app when sent from firebase console. The problem is: When sending notification from "Test Send" in Azure Portal, it does not get delivered and I can see error under 'FCM v1 Errors' metrics. When sending template notification from code (C# - Microsoft.Azure.NotificationHubs nuget), it shows same error. Here are some tracking id (I don't know how I can use those to get more information): eba8824d-6625-46ca-aa4c-b89cf4fbf9a3 d1638928-dc27-49ee-a4ee-2ccc1451acb6 58e2b6b4-1075-465a-9f17-1d6810e6d9b4 0d62ae4c-495c-4da5-8bbe-ed1b43d00413

@Hiran Desai , Since the Microsoft Q&A community has a policy that the question author cannot accept their own answer. They can only accept answers by others , I' have summarized and posted the solution, request you to Accept the answer, it will benefit the community find the answers quickly. Scenario: Migrating from GCM/FCM notifications to FCM v1 using Azure doc: Google Firebase Cloud Messaging migration using Azure SDKs - configured Firebase Service Account Credentials in Azure Notification Hub, updated backend and app to use FCM v1, and verified device registration and notification delivery from Firebase console. Issue: Notifications sent from Azure Portal's 'Test Send' and via code using Microsoft.Azure.NotificationHubs nuget are not delivered. The error "The notification could not be delivered due to an unknown error" occurs. Resolution: The problem was resolved by enabling Firebase Messaging API on Google console. The doc will be update to add clarity on this step: https://learn.microsoft.com/azure/notification-hubs/firebase-migration-sdk If the answer helped (pointed you in the right direction) > please click Accept Answer - it will benefit the community to find the answers quickly.

Enabling Firebase Messaging V1 API on Google Cloud console fixed.

FCM V1 notifications are not delivered from Azure Notification Hub

Hiran Desai 45

I am following this Microsoft Guide to migrate from GCM/FCM notifications to FCM v1.

From the guide, I -

Configured the Firebase Service Account Credentials in Azure Notification Hub
Updaeted backend and app (Xamarin) to use FCM v1 platform during installation & registration of push notification
Verified that the device is actually registered in notification hub (by getting registrations from notification hub)
Verified that notification is delivered to app when sent from firebase console.

The problem is:

When sending notification from "Test Send" in Azure Portal, it does not get delivered and I can see error under 'FCM v1 Errors' metrics.
When sending template notification from code (C# - Microsoft.Azure.NotificationHubs nuget), it shows same error.

Here are some tracking id (I don't know how I can use those to get more information):

eba8824d-6625-46ca-aa4c-b89cf4fbf9a3
d1638928-dc27-49ee-a4ee-2ccc1451acb6
58e2b6b4-1075-465a-9f17-1d6810e6d9b4
0d62ae4c-495c-4da5-8bbe-ed1b43d00413

Hiran Desai 45 Reputation points

2024-04-16T12:06:46.36+00:00

Seems many people are facing the same problem!

https://learn.microsoft.com/en-us/answers/questions/1621493/azure-push-notification-hub-is-not-sending-notific

https://learn.microsoft.com/en-us/answers/questions/1622469/test-notifications-with-fcmv1-sent-from-azure-hub
Kyle S 15 Reputation points

2024-04-16T19:50:27.6066667+00:00

I have the same problem. I have had a support ticket open with Microsoft since March 22 with no resolution or even an understanding of where the problem is.
Kyle S 15 Reputation points

2024-04-16T19:51:21.8833333+00:00

I have the same issue. I have had a support ticket open with Microsoft since March 22 with no resolution or even an acknowledgement of the issue.
Hiran Desai 45 Reputation points

2024-04-17T15:46:42.96+00:00

Looks like Notification Hub team is not ready to fix this any time soon. I have seen many similar thread with no reply
ajkuma 22,401 Reputation points Microsoft Employee

2024-04-18T07:56:05.7333333+00:00

I understand the inconvenience this issue may have caused, I'm checking on this internally and will get back to you soon.

Apologies for any inconvenience with this.
ajkuma 22,401 Reputation points Microsoft Employee

2024-04-18T07:57:24.61+00:00

@Kyle S, Could you please share the support ticket number #SR, I'll track this internally.
Kyle S 15 Reputation points

2024-04-18T11:16:58.71+00:00

@ajkuma 2403220040005785
David Mikesell 0 Reputation points

2024-04-18T12:48:53.6766667+00:00

If you come to a resolution on this, could you please share the solution here for those of us who are having the same problem?
David Mikesell 0 Reputation points

2024-04-18T12:50:13.5333333+00:00

If you come to a resolution on this, could you please share the solution here for those of us who are having the same problem?
Kyle S 15 Reputation points

2024-04-18T13:18:03.21+00:00

Yes, I will follow up here when I know more.
Kyle S 15 Reputation points

2024-04-19T12:31:15.71+00:00

Latest reply from ticket, which is basically no news. Don't hold your breath.

Hello Kyle, Thank you for your response and trying work around, we've escalated the service request to our product group team, as checked multiple customers are facing similar issue, I understand how frustrating this must be and we are trying our best to fix the issue for you.
Hiran Desai 45 Reputation points

2024-04-19T13:55:10.3666667+00:00

@David Mikesell @Kyle I got it working on my side.

Realized the problem was on my side ... the team forgot to enable Firebase Messaging API on Google console.

I had posted same question on stack overflow too -
https://stackoverflow.com/questions/78334372/fcm-v1-notifications-are-not-delivered-from-azure-notification-hub

Where I have uploaded code samples... hope it helps...

Feel free to shoot any question :)
Kyle S 15 Reputation points

2024-04-19T14:27:30.0466667+00:00

@Hiran Desai That fixed it for me to. This step should probably be added to the migration docs from MS.
ajkuma 22,401 Reputation points Microsoft Employee

2024-04-19T18:20:41.25+00:00

Kyle S, Glad to know that the issue is resolved.

I'd been discussing on this with our product and content team, we would work on updating the doc to add more clarity on enabling Firebase Messaging V1 API on Google console.

Thanks to Hiran Desai for sharing the solution.

Accepted answer

ajkuma 22,401 Reputation points Microsoft Employee

2024-04-19T18:25:34.5666667+00:00

@Hiran Desai , Since the Microsoft Q&A community has a policy that the question author cannot accept their own answer. They can only accept answers by others, I' have summarized and posted the solution, request you to Accept the answer, it will benefit the community find the answers quickly.

Scenario:

Migrating from GCM/FCM notifications to FCM v1 using Azure doc: Google Firebase Cloud Messaging migration using Azure SDKs - configured Firebase Service Account Credentials in Azure Notification Hub, updated backend and app to use FCM v1, and verified device registration and notification delivery from Firebase console.

Issue:

Notifications sent from Azure Portal's 'Test Send' and via code using Microsoft.Azure.NotificationHubs nuget are not delivered.

The error "The notification could not be delivered due to an unknown error" occurs.

Resolution:

The problem was resolved by enabling Firebase Messaging API on Google console.

The doc will be update to add clarity on this step: https://learn.microsoft.com/azure/notification-hubs/firebase-migration-sdk

If the answer helped (pointed you in the right direction) > please click Accept Answer - it will benefit the community to find the answers quickly.
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1 additional answer

Hiran Desai 45 Reputation points

2024-04-19T14:38:03.95+00:00

Enabling Firebase Messaging V1 API on Google Cloud console fixed.
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ajkuma 22,401 Reputation points Microsoft Employee

2024-04-19T18:17:49.6+00:00

@Hiran Desai , Glad to know that the issue is resolved. Thank you for the follow-up and sharing your solution that worked for you.

We appreciate feedback and update.

I'd been discussing on this with our product and content team, we would work on updating the doc to add more clarity on enabling Firebase Messaging V1 API on Google console. ( will post an update as soon the doc is enhanced)

Since the Microsoft Q&A community has a policy that the question author cannot accept their own answer. They can only accept answers by others, I' will summarize and posted the solution, request you to Accept the answer, it will benefit the community find the answers quickly.
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