How do you validate if a user is NOT a member of a group?

[lkolmer]

I need to disable a field to all users that are not a part of one particular group. What I've used before to validate if a user is a group member was:

fn-IsMemberOfGroup(GroupName)

How would I modify that to see if the user is not a part of a particular group?

Thanks,

Lauren

[fhunth]

Take a look at this >>> Nintex: Check if a user is a member of a SharePoint group

[rhia]

Hi Lauren Kolmer‌ - this is kind of an old question so I'm sure you've got it by now, but I'd think you'd just say "not(fn-IsMemberOfGroup(GroupName))"