GeoDirectory Ajax Duplicate Alert
The Ajax Duplicate Alert add-on checks several different fields of new listings in real-time against those already in the database. If it finds a match, it will warn the user that they are about to add a duplicate and save the day.
Forget about having to weed out duplicate listings with our easy to use solution. With just a few clicks, this add-on will show a warning notice to users when any of the enabled settings show a match with a current entry.