push notification how to use?

for sending the push is made the addition in the .xml of the key of fireBase, and for the aplicivo tract maneger recognize the key and automatico? and made the notifications via WEB to push in the application?

Only half of your message is in English. If you expect some answer or comment from English speaking community here, you would need to fully translate it.

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Sorry...
To send the push the addition is made in the .xml of the fireBase key, and for the application to handle the push .. recognize the key? .. it's automatic? are notifications via WEB to work the push in the application or not?

Have you read documentation?

https://www.traccar.org/documentation/notifications/

Yes, the documentation is more focused on the FireBase key, and I need to enable notifications..??
Thanks for the answers and attention...

Sorry, but I don't understand your questions. Obviously you need to enable notifications to receive notifications. I'm sure that you are trying to ask something else.