Application source qualifier <application source qualifier name> has more than one tree attached.
The listed application source qualifier is associated or connected to more than one imported PeopleSoft tree source definition. You can associate or connect only one imported tree source definition to a single application source qualifier.
Disconnect one of the tree source definitions from the application source qualifier. Or, remove one of the associated tree source definitions. To use more than one tree in a single mapping, create an application source qualifier for each tree you want to use. Use a Joiner transformation to join two related trees.