Setting a double constraint for multiple_select

Try the following in the constraint column

not(selected(., '99') and count-selected(.) >=2)

Where '99' is the value for "Don't know" and "2" represents 2 or more choices are selected. I would include a constraint message along the lines of "Don't Know can not be selected with other responses"

@Fadl; please introduce yourself HERE when you get a chance, it helps build the community.

2 Likes