I would like to send a silent notification to my app users, to refresh the content.
I have read various articles on sending silent notification to opted out users. But, how do we do it? Most opted out users don't have device push tokens. How do you ping a device to send the silent push payload?
We currently use push tokens for opted in users to send a remote notification. But if iOS 8 and beyond allows to send silent notification to all the app users even if they are opted out, how do I send them without a token?