Hi, Running the collection letter process allows generating a collection letter document that can be send out to the customer for example by email. This is a great functionality. What is missing though is that one wants to attach the invoices included in the collection letter to this email that goes out to the customer. That is because many customers call once they receive their collection letters and ask for a copy of the invoice(s). Sending them directly with the collection letter alleviates and speeds up this process. Would be great if this could be implemented with one of the next releases. Many thanks, Ludwig