Send reminders of invoices to be paid in next two weeks

(On Peoplesoft Receivable 9.1)

Is there a process that can help with automating the sending of reminders(letters/emails) to customers advising them of items that will need to be paid in the next two weeks.

The customer statement and dunning letters do not fit the bill for this requirement, as the customer statement gives all the items and the dunning letters send letters only for items past due.