CODEWITHSUNDEEP
firebasepush-notificationfirebase-cloud-messagingfirebase-admin
Joe Scotto
Joe Scotto

Reputation: 10867

Firebase messaging/mismatched-credential

I'm trying to send notifications to a specific device with Firebase but am getting the following error:

{"r": {"results":[{"error":{"code":"messaging/mismatched-credential","message":"The credential used to authenticate this SDK does not have permission to send messages to the device corresponding to the provided registration token. Make sure the credential and registration token both belong to the same Firebase project."}}],"canonicalRegistrationTokenCount":0,"failureCount":1,"successCount":0,"multicastId":5165415028752234000}}

I'm not sure what is causing this, I'm using the service account associated with the project and the proper device id.

Any help would be great, thanks!

Upvotes: 18

Views: 20367

Answers (5)

Ahmed Elshazly
Ahmed Elshazly

Reputation: 56

This worked for me try it:

1- Go to google cloud.

2- then go to API and Services.

3- then Enabled API and Services.

4- then turn on the cloud messaging and Turn on Firebase cloud messaging API.

Upvotes: 1

NewestUser
NewestUser

Reputation: 3100

Enable Firebase Cloud Messaging API in Google Cloud Platform.

Note that I wasn't able to find it in the section APIs & Services Dashboard but I had to browse the API Library

After you enable it you can find it in:
Google Cloud Platform > Navigation Menu > APIs & Services > Dashboard > Firebase Cloud Messaging API

Direct Link: https://console.cloud.google.com/apis/api/fcm.googleapis.com/overview

Credits to niocncn.

Upvotes: 0

Martin Z
Martin Z

Reputation: 171

I faced the same problem. It took me two days to figure out that I need to enable the Firebase Cloud Messaging API through google cloud platform. Without enabling it, it also yields the error "mismatched-credential". I really wish that the error message could be more specific.

Upvotes: 10

Joe Scotto
Joe Scotto

Reputation: 10867

The issue was with my google-services.json. My app uses two projects and was defaulting to the first project. Adding the second project json file ended up fixing this since it can now send the tokens to the proper project.

Upvotes: 14

Doug Stevenson
Doug Stevenson

Reputation: 317412

This error message can be found in the documentation for FCM.

It means that you've initialized the Admin SDK with a credential for a project that is not the same as the device registration token.

To put it another way: for security reasons, you can't simply send messages to any device token that you come up with. You can only send messages to device tokens via apps in the same project.

Upvotes: 14

Related Questions