Add a payment reminder
On your SumUp profile, click “Invoices”.
Tap “New Invoice” and create an invoice.
On the screen with the option to add recipients and a message, check the reminder box.
If the invoice isn’t paid in full, your customer will receive the reminder the day after payment became overdue. In other words, two days after the due date. A notice of the reminder will appear in your invoice history.
Once you have checked the box and sent the invoice, the reminder cannot then be cancelled. It will, however, only be sent if the invoice hasn’t been paid in full.