Adding Google GCM Api Key Azure Notification Hub Error

Question

We are trying to add our GCM API key to the azure notification hub and we are receiving the following error:

SubCode=40000. Failed to validate credentials with GCM.

Answer 1

SubCode=40000. Failed to validate credentials with GCM.

This will probably fix this error:

Under the SERVICES tab in the APIs console for Google devs:

• enable Google cloud messaging for android

Answer 2

CrusherJoe is 100% correct but if some one need more clear picture here I have attached the screenshot. just go to the link and enable it.

Answer 3

I recently had this problem and what I found was that I needed to go to the new firebase console, import my existing google project.

Once I had done that I could go to the settings cog in the top left->project settings. Then click on the cloud messaging tab then get the new server key. Once I entered that I was good to go in the notification hub.

Answer 4

Some users may not have verified or registered domain.

With the help of webmaster Tools u can verify and register your domain.

Go to Google Dev Console -> your project ->API's and Auth -> Push -> Click on Learn more for webmaster