We will notify you when you reach 50%, 80% and 100% of your plan’s subscriber limit, so you will have plenty of time to consider an upgrade. We will send you an alert in your user profile so you always know!
If you do hit the 100% limit, we will still register new subscribers for a limited period. However, you won’t be able to send them push notifications.
When you upgrade your plan, these ‘sleeping’ subscribers will be reactivated.