Sufio allows you to send invoices to your customers by email easily.
You can set your Sufio account to either send invoices automatically when orders in your store are created or updated, or to send invoices manually one by one.
Choose for which orders you want your invoices to be sent.
Send automatic reminders for your outstanding invoices.
Send copies of all sent invoices to your inbox or other recipients.
Send additional documents along with invoices to your clients.
Append additional pages to your PDF invoice files.