Unable to send FCM android push using setTopic("ALL") method -> "No FCM token found for notifiable."

[tech-kombee]

When we want to broadcast any information to all our user, we would want to use setTopic($topic_name) method and passing "ALL" as topic name.

However when we try to use this method, it is still asking for the token which contradicts to the fact that Firebase do not require token when we are using "topic"!

Reference Link : https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages

Looking at the source code of FcmChannel.php (https://github.com/laravel-notification-channels/fcm/blob/master/src/FcmChannel.php), it looks like "topic" & "condition" related information are not handled while sending firebase push notification!