I am attempting to set up a copy rule so that when a user creates a request, their associated Agency is populated on the Request window. There is a collection on the User object for the Agency that the user is associated with. I created a one-to-one relationship for the Agency on the Request object, then setup a copy rule that targets the _Agency attribute on the Request object and uses it's source as the RaiseUser/_AgencyCol (this is the Agency collection on the User object). When I test the window, I get the following error "Type mismatch when attempting to set attribute value _Agency"
Is it possible to create a copy rule that uses a collection as the source?