When Synergy cannot renew a subscription, this can be for different reasons - maybe a credit card is overdrawn, or a credit card has expired, the company will enter what is called the grace period.
The grace period goes for 15 days from the date the subscription ended. Following this date, users under this license will no longer be able to access Synergy. The organization data already in Synergy will still be stored and accessible once the subscription is renewed.
Only system administrators can see they are in the grace period from the Subscriptions page. The system administrators will also be notified by email that the credit card payment has failed and the subscription needs renewing.
If payment is made during the grace period your subscription will be extended by one month from the expiry date and not from the payment date.
Synergy will attempt to charge your credit card with the existing credit card details once a day to make a payment for subscription renewal for the duration of the grace period. System administrators can update the credit card details at any time during the grace period to renew the subscription.