I have been told that I can get NationBuilder automatically to show me which UK Parliamentary Constituency a contact is in as long as they enter an address with a post code. Is this correct and, if so, how do I do it? Thanks
You can find constituencies in each person's profile under Location > Voting districts. You cannot set it to display anywhere else, so you will need to check there.
Complete and current information on how to use NationBuilder is available in the documentation section.