Can I restrict Collect Details to my guest list?
Understand how the Collect Details form works and who can submit their information.
Plan requirement: Standard or Pro plan
Short answer: No, there is no option to restrict the Collect Details form to existing guests only. Anyone with the link can submit their details.
How Collect Details works
The Collect Details form is an open submission form. When you enable it and share the link, anyone who has the link can fill in their name and contact information. There is no login or guest list check. It simply collects whatever details people submit.
This is by design. The purpose of Collect Details is to gather information from people whose details you may not have yet, so requiring them to already be on your guest list would defeat the purpose.
Controlling who submits
Since there's no built-in restriction, manage access by controlling who gets the link:
Share selectively: Only send the link to people you actually want to hear from
Review submissions: Check new entries in your guest list and remove any you don't recognize
Delete unwanted entries: Remove any submissions from unknown people
Close the form: Disable the form once you've collected what you need
If you only want existing guests to update their details
If you've already added your guests and just want them to review and correct the details you have (not add new people), you don't need the open Collect details link at all. Use the per-guest Update details link instead:
It's a personal link for each guest, pre-filled with their own and their household's existing details.
Guests can correct and complete their information, and saving updates your existing records in place — no duplicates, and nothing gets moved out of your households.
Turn off Add another guest in your Collect details settings so guests can't add plus-ones or extra people.
See How do I send guests a link to update their own details? for the full walkthrough. This is usually the right choice once your guest list and households are set up.
Other options, depending on what you need:
RSVP form: Your RSVP form requires guests to look up their name, so only people on your guest list can respond
Custom RSVP questions: Add address or contact fields as custom questions on your RSVP form, which is already restricted to your guest list
Handling duplicates
If a guest submits via Collect Details and they're already on your list, you may end up with duplicate entries. Check for and merge duplicates regularly in your guest list.
Tips
Share the Collect Details link only with people you know
Review new submissions promptly
Set a deadline and close the form after
Use the RSVP form instead if you only want responses from known guests
Merge any duplicate guest entries that appear