Users can access their invoices at all times from within the Invoices menu of the mobile app.

If you have enabled invoice notifications under Settings > Features > Invoicing > User communications, users will receive an email in advance of the invoice being due as well as after a successful or failed payment attempt. You can customize how much in advance you would like Users to receive an email containing a link to their pending invoice.

Users are also able to pay for a pending invoice prior to the invoice being due. Admins will also be able to mark pending invoices as ‘Paid’ if they receive another type of payment not processed through Optix (i.e. a check).