In collection process the customer is reminded for invoices based on a reminder template. When invoices are included to the reminder handling the Min Days to Next Reminder is considered - and an invoice is NOT included to the reminder if the Min Days is not met.
This is good - when the system is escalating the invoices (raising the level to next level).
I call the period Min Days to Next Reminder as response period, here.
But from the customer communication point of view, it would be good, if the invoices on response period could be included to the reminder - with their current reminder level. The motivation is that this way the next reminder would always have complete picture (information) to the customer - including all the invoices that are NOT YET paid, so that customer does not need to wonder - why is an invoice now missing from the reminder, though it was last time there.
I suggest that a parameter is added to the template Include invoices on response period and if that is NOT marked - the process works as today. But if it is marked, then even invoices - with their current reminder level - are printed onto the reminder.
This way also any unnecessary communication from the customer to the company can be avoided.