From the Dunning Group Details screen, you can assign a Master Plan Instance to a specific dunning group.
You may want to assign multiple Master Plan Instances to a dunning group to coordinate the final step in dunning and, optionally, follow the same dunning process.
Note: If a Master Plan Instance is in dunning, it cannot be moved to a different dunning group. If any Master Plan Instances in a dunning group are in dunning, then no new Master Plan Instances can be moved into that dunning group.