A sensible reminder sequence

A friendly note before the due date, a reminder on the due date, then firmer follow-ups at set intervals, each with the invoice and payment link attached. Replies are read by AI: 'paid yesterday' triggers a check against the bank, 'please resend' gets the document, and disputes go straight to a person.

Keep the relationship human

Exclude key accounts or customers in sensitive situations from automated chasing, and let your team review the list of overdue accounts weekly. After a set point, a call from a person usually works better than another email.