Thank you. I added the code and it works except I can not do a multi-select. For example if a site is like this:
Main Site (does not display in list)
Site 1
Site 2
Site 3
Your code displays the list of sites (which is awesome) but I can only choose 1 site. Is there a way to make the list a multi-select so I can show a promotion on “Site 1” AND “Site 3” but NOT on “Site 2”?
Also how can I add “Allow Null” as an option.
Again thank you for the above code. Your support here is awesome.
