Create payment reminders
Log in to your SumUp profile using a web browser and click "Invoices" in the left navigation panel.
Select "Invoices" and then choose the unpaid or overdue invoice to send a reminder for.
Click the three dots in the top right of the screen and select "Create", then "Reminder".
Optionally, add a message to accompany your reminder and a late fee.
Click "Create" in the top right corner to view your drafted reminder.
Tap "Send" then check the recipient email address and the email subject and body.
If everything looks good, hit "Send" to send the reminder.
Remind customers of unpaid invoices by enabling automatic payment reminders to be sent once the invoice's due date passes.