Not getting the push notification on our server from Garmin connect

Hi,

I am not receiving push notifications for Sleep, HRV, and Dailies , but I am receiving push notifications for activities when the user syncs data. I have enabled all these services and entered the server url as well. However, when I try to backfill the data, I receive push notifications on the server for all the services. 

We are not getting it when someone sync with garmin connect. We know the call is async but still we waited for weeks to get through but no push notification.