Main Form: School
Subform: Courses (1 to many from School)
Subform2: Sites (1 to many from Courses)

Everything works fine when the form and both subforms are displayed. When I
add a record to subform2 the Courses ID auto-populates which I want.

However, when I open Subform2 from an action button and click add record,
the Course ID does not auto-populate.

Help?

Thanks...