If you did not send the invoice through Balabook, you need to mark the invoice as sent before you can send a reminder. Click mark as sent under the Send section of the invoice first, then follow the steps below.
- On the left-side menu, click Sales > Invoices.
- Click on the invoice number to view it.
- Click 'Send a reminder' under the Get Paid section of the invoice.
- Click 'Send' to send an email reminder to the customer.