Firebase cloud messaging notification not received by device

Question

I am having an issue with FireBase Cloud Messaging in which I get the Token from the device and send the notification test through the Google Firebase notification console h

Answer 1

I've been working through this entire post and others as well as tutorial videos without being able to solve my problem of not receiving messages, the registration token however worked.

Until then I had only been testing the app on the emulator. After trying it on a physical phone it instantly worked without any prior changes to the project.