Hi Vikki,
In Cvent, data tags will not populate in the preview or test email versions. To see how an email looks with actual data tags filled in, the best approach is to add yourself as an invitee or registrant, depending on the email type. Once added, manually trigger the email to be sent to yourself. This way, you'll receive the live email with all data tags correctly populated-just as your attendees would see it.
Please contact me if you need any assistance with your event in Cvent.
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Amarnath Annamalai
Freelance Cvent Specialist
www.cvntexpert.cominfo@cvntexpert.com------------------------------