Trial and Basic subscriptions are limited in the number of monthy invoices that can be issued directly to your customer via email from OSO Books. Professional and Enterprise subscriptions are not subject to email limits.
If a limit is applicable to your subscription, current usage and rollover date is displayed:
Automatic reminder emails to clients, such as payment due and overdue reminders do not affect your email quota.
Any emails sent to you from your OSO Books toolkit, do not affect your email quota. For example, low stock notifications, or notices regarding recurring invoice scheduling.
When you click the Email Invoice button, current usage is shown on the email customisation prompt.
Alternatively, click the Setup button, and select the Subscription tab.