I am implementing android subscription in my app. Subscription document says the app will get notified on successful payment with purchase token and other details.
Subscription i am going to add is having trial period and i would like to alert user few days before trial period completion. Document doesn't says if will return any kind of response when user purchase subscription for trial period with $0.0 cost.
If Google play doesn't notify app for the trial period expiration or on when it charge user $0.00 for trial period, how can i notify the user few days back of trial period completion?
Thanks in advance