I have a field group named cb_dog3, which includes the subfields cb_dogname and cb_rabiesexpire. In an auto action, I'm using the condition [cb:userdata field="_cb_dog3_0_cb_dogname" /] is not empty and [cb:userdata field="_cb_dog3_0_cb_rabiesexpire" /] is empty, I want to make the rabiesexpire subfield required and return an error message. Have I set the condition up correctly? Is there a PHP code (or other way) that will do this?
