Diobox offers a Guest Groups feature which allows you to link guests together.
This article explains how you can create different types of RSVP pages so that your guests can register their own plus-ones.
Send an Email with Built-In RSVP Tracking
This type of email allows you to collect RSVPs for a private (by-invite-only) event and supports plus-one registrations. To create one, select any template under the Email with Built-In RSVP Tracking section.
For more details about this feature, see Private Email Invitations.
On step 4 of the Email Builder, where you can customize your RSVP page, scroll down to the bottom of the sidebar (RSVP Settings) where you can toggle the Plus-Ones feature.
Here you can set the limit of how many plus-ones each guest is allowed to register. So whoever receives this invitation is able to register the number of plus-ones you set on this page.
Tip: If you want different guests to have a different limit of plus-ones to register, then use Guest Lists to categorize your guests accordingly. Then create and send a separate email invitation (or duplicate an existing one), each targeted to those Guest Lists. To learn more, see Guest Lists.
Publish a Private RSVP Page
You can create a blank RSVP form that anyone can use to register for your event. This registration form also supports plus-one registrations.
This feature is available on the Forms tab on the main navigation, under the Private RSVP Form section.
To learn more about creating and customizing your registration page, see Private RSVP Forms.
When you are editing the registration page, you can find the Plus-Ones feature on the right sidebar. Scroll down to enable it and set a limit of how many plus-ones each guest can register.
Then, when the registration form is published, anyone who uses that link to register for your event will have the opportunity to also register their plus-ones.
Publish a Ticket Registration Page
The Diobox Ticketing module supports both free registrations as well as paid tickets.
Tickets don't need to support plus-ones because they already support multiple registrations. Each ticket has a Max per Order field which enables guests to register multiple people simultaneously while placing the ticket order.
When an order with multiple tickets is placed, however, all the guests in that ticket order appear as a group. This also applies to deferred ticket assignment.
To learn more, see Ticketing Registration Forms.
Understanding Plus-Ones from the Point of View of the Guests
Emails with Built-In RSVP Tracking and Private RSVP Pages
When a guest registers a plus-one, the plus-one receives an email confirming the registration. The email subject line will include the name of the person who invited the plus-one, followed by the event title and date. The email body will include additional event details as well as the QR Code, if enabled for the event.
The format of this email resembles the Smart Reminder email, which you can always send on your own directly from the guest page.
Neither the guest nor the plus-one will be able to edit the plus-one information after they submit the registration form. Only you (the event organizer), will have the authority to edit the plus-ones.
Ticketing Registration Forms
If a ticket order is placed with multiple guest registrations, the primary registrant receives an email receipt with links to all tickets.
Additionally, each individual ticket is emailed to their corresponding guest. Anyone with that email link can edit the guest information, unless the editing feature is disabled in your Event Settings.