I was wondering if anyone can describe the steps of using a lookup table in validating name. For example, I want to set up a registration form and in the registration form, the enumerators with enter the first and last name of participants. However, there is a blacklist of people that I don't want the enumerators to register. So what I want to do is that I want to add all those names in a lookup table and upload it to the form and it any of those names were entered I want a msg to appear for the enumerators to notify them that you can't register this person. Can anyone help please.
Thanks in advance