Xero invoice reminders are automatic emails that Xero sends your customers when an invoice is due or overdue. Xero comes with three default reminders for overdue invoices, and you can have up to five in total, each set a number of days before or after the due date. You turn them on from the Invoices page in the Sales menu.
We make The AR Agent, which works alongside Xero, so weigh what we say about it accordingly. This page explains how Xero's reminders are set up, what they do well, where scheduled emails stop, and when it makes sense to add something that reads and answers replies. Everything we say about Xero comes from Xero's own help and product pages, linked in Sources.