I have created a contact us form. I want to evaluate if this Contact assigned_user_name has an assignment. Most will but if it is a new user, they likely will not have a user assigned yet. If there is an assigned user, I will just simply send an Alert. For the ones that do not have an assigned user, I want to send an Alert to a Sales Branch representative. We have about 30 branches. Is there a way to create branch assignments based on zip code?