I've created a visual workflow that is used to create a contact. A part of creating a contact means that there MUST be a phone-number OR an e-mail address entered for the contact.
This means that I need to validate each of these fields with something like this:
E-Mail != NULL || Phone-Number != NULL
Unfortunately, my google searching has led me to believe that the functions ISNULL and ISBLANK don't work in visual workflow validation, and otherwise I can't seem to figure out how to construct this conditional.
Does anyone know if this is a limitation in visual workflow, or is there a way to make it work?