InfoPath Dev

Hi Patrick, Can I get you to explain a little more. Do I create the rule on the field where the last name is being selected via the drop down box?

Here is my scenario... I have two data sources; the main and the secondary pulls data from a SharePoint List. I imported an Outlook group that had a group of people in it. I created a drop-down list box and pulled in all the last names from the secondary data source. I then went into the data validation field of the drop-down list box, and ...