The "Hide this field in the check-in app" option only works on custom attendee information fields. It does not work on the default fields: First Name, Last Name, and Email Address.
What's Happening
When setting up your attendee form, each field has a "Hide this field in the check-in app" setting that lets you exclude it from event staff's view during check-in.
This setting works as expected for custom fields you've added yourself (text fields, dropdowns, checkboxes, etc.). However, it currently has no effect on the three default fields that are automatically added to every attendee form:
First Name
Last Name
Email Address
Even if this option is enabled for one of these default fields, it will still appear in the check-in app.
Why This Happens
First Name, Last Name, and Email are core fields used to identify attendees and manage check-in, so they're treated differently from custom fields in the check-in app. Hiding them isn't currently supported.
What You Can Do
If you don't want certain default field values visible to check-in staff, there currently isn't a way to hide First Name, Last Name, or Email specifically from the check-in app. This is a limitation of the feature rather than a setting that can be adjusted.
If this is important for your event setup, feel free to reach out to our support team so we can note your use case for future consideration.
If you have any questions, feel free to reach out to our support team.