So - I've been pulling my hair out for 2 days trying to figure out what seems like it should be simple. I have a shape with Shape Data defined. Hosted_Type is the field and it is set to String.

In my Action I have:
=SETF(Prop.Hosted_Type,"Trading Partner")

I've also tried (among 10 other things):
=SETF(GetRef(Prop.Hosted_Type),"Trading Partner")

And just setting it as so:
=Prop.Hosted_Type="TestData"

Nothing works to date. Exception:
=SETF(GetRef(Prop.Hosted_Type),1)

If I use a number instead of text, the Property in the Shape Data gets updated.

Am I missing something? This seems so basic, yet I cannot find a single piece of documentation on how to set a Shape Data field to TEXT based on a menu choice. Nor do I find any documentation that states this cannot be done.

Thank you for any help!