Hello -
I used SP 2016 On-Premises, I would like to validate the attachments field if empty on the submit form. I used a validation rule below, but none of them are working. How can I validate if attachments empty on the submit form in Nintex New form? I’m appreciated for your help.
not(Attachments)
not({Self})
Attachments < 1
isNullOrEmpty(Attachments)
