Create and send a dunning letter

Owners and admins can send dunning letters; accountants and bookkeepers can prepare drafts only. Open the overdue invoice. The Dunning section shows the next level.
Choose Create for that level. A draft is made with default interest and the reminder fee from the client's dunning policy.
Check the preview. You can discard the draft as long as it is not sent.
Send the letter. It is frozen and mailed by e-mail. If the contact has no e-mail address, the app stores the letter but does not mail it, so it has to reach the customer another way.
Under Invoices, Dunning you see every letter of the client. A dunning block on the invoice or on the contact stops the letters, for example when the invoice is disputed.