Advanced Android in Kotlin: Firebase Messaging 1.2 [Step 6][Access data payload on background]

[SanoopC]

Describe the problem

1. How to access the data payload when the app is in the background and tap on a notification.
2. How to access the data payload when the app is in the background and doesn't click on the notification.

In which lesson and step of the codelab can this issue be found? Lesson 1.2: Android Firebase Cloud Messaging, Task 6, Step 2.

How to reproduce? Put the app in the background and sent a push notification with data payload from the console.

Versions

1. What version of Android Studio are you using?
2. What API level are you targeting?

Additional information

codelab: advanced-android-kotlin