Hey @j.singler 

Thank you for sharing this question with the Klaviyo Community! I love when members think of additional ways to utilize Klaviyo!

You can use Klaviyo to manage your RSVPs through our email templates. What you can do is within the initial email, you can have a button customers can click to RSVP for the event. When they click the button, a custom property can be added to their profile. To do this, you will want to use this tag:

{% update_property_link 'profile_property' 'property_value' 'redirect_link' %}

Once the customer clicks the button and a property is added to their profile, you can create a segment to group these customers. This segment can also trigger a flow, to automatically send out an email with details about the event. You can also check out these Community Post on advanced segmentation: 

Hope this helps get you going! Thank you for being a part of the Klaviyo Community!

Hi  @stephen.trumble ,

Is it possible to use this update_property_link without redirecting the subscriber to a webpage?

Have a great day!

Inez