If you need a count of children versus adults, for example, the best way to do this is with our custom questions features.
- You can create a custom question asked to each guest asking something like "Is this guest 17 years of age or under?"
- For a quicker experience for guests with fewer steps, you could also create one single custom question at the end of your RSVP flow asking how many total guests are under X years of age.
With either option, you will be able to see tallies in your RSVP Dashboard, as well as export this data to a spreadsheet.
To set this up, go to Setup > Custom Questions.