You enter dunning message and collection letter codes, names, and text into the Dunning Message (DNGM) and the Collection Letter (COLL) tables, respectively. Additional collection parameters are set on the Collection Control (COLLC) table.
The Billing process uses parameters defined in the Collection Control table to define when and which dunning messages and collection letters should be used to notify customer of overdue accounts. It references the Dunning Message and the Collection Letter tables to determine the text and codes to use in the generated notices.