Configure Google Cloud Messaging (GCM) for a Phonegap App

gcm.md

1. Go To Google Developers Console
2. Create a project and enter on its console
3. Left panel go to APIs & auth -> Credentials
4. Click Create New Key -> Server Key -> Put the public IP or domain where the server remains (for testing a 0.0.0.0/0. can be used)
5. Left panel go to APIs & auth -> APIs -> Look for Google Cloud Messaging for Android and turn it ON
6. Copy the API key generated

Then go ot Google Developers Console at GooglePlay

1. Choose your app
2. Left menu -> Services & APIs keys
3. At section GOOGLE CLOUD MESSAGING (GCM) click on Link a Sender ID
4. Paste the Server Key
5. Click OK

You should see somethin like GCM sender ID 123456789 has been linked successfully. More Info

Use that "server Key" from you server implementation when posting a push notification