Unable to receive Delivery status Report for FCM other than Sends count

[Vimala C]

Hi,

I am using Firebase Cloud messaging service (HTTP v1 API) to send push notifications to Android device. 

After push notification is delivered to the Android device, I am unable to see "Received/Open/Impressions" count getting increased in Reports tab of FCM console. 

Only the Sends count getting increased for each trigger, which is the count of messages delivered successfully to FCM server and not the actual handset delivery status.
I am using latest FCM SDK in application: com.google.firebase:firebase-messaging:20.2.0 and sending request for Push with analytics label included in JSON body.

I need Received/Open status in report for each notifications sent through API/console. 

Any help or idea is appreciated.

Thanks,

Vimala