Hi @Horgans 

I’m not aware of an ‘add a message body’ in Klaviyo, though you can certainly use a mailto: link to open an email client and add a subject line.

Depending on what response you expect, your MailChimp approach may mean a lot of emails you’ll need to manage and manually collate into a list! More error prone too.

I would recommend using a registration form for the data you want to capture. With that approach, a contact’s data will automatically be added to their profile as custom properties, so you can easily create segments in Klaviyo for follow-up emails on the event and personalise those with the data you captured.

Hope that helps

Andy 

Hi @Horgans,

I haven’t tried it myself, but this thread mentions how you can add text to the body of an email from a button. I don’t know how much text you can add, I would do lots of testing if you want to go this route!

That being said, I agree with @bluesnapper that a registration form would allow you to gather the information within Klaviyo, with a lot less potential for data entry errors.

Best of luck!