This apps adds the possibility of enabling an automatic mail reminder for 4 kinds of transactions (Sales orders, Sales invoices, Purchase Orders, Supplier quotations).

Supplier and Customer have "Automatic Mail Dunning" checkbox. When a Sales orders, Sales invoices, Purchase Orders, Supplier quotations is created the "Automatic Mail Dunning" checkbox on the transaction (on Terms tab) is defaulted with party one, it can be unchecked even if transaction is submitted.

You can set up email template for more than Sales Invoice or Purchase Order, let's have a look.

A task will daily check if documents should be reminded to the contact set in it.