Hi Maria,
While I'll let other Cvent users chime in for their invitation methods or anything they personally like to check before going live, I wanted to provide you with some helpful Community articles to help your eventual event launch. It's always best practice to test your event and registration process before officially going live (article below), but I'm including an article on what to check before launch and things that cannot be changed once you're live as well.
https://support.cvent.com/s/communityarticle/Using-Testing-Scenarios
https://support.cvent.com/s/communityarticle/What-to-Check-Before-Publishing-Your-Event
https://support.cvent.com/s/communityarticle/What-can-t-be-changed-after-I-launch-my-event
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Best,
Raana Moltaji
Senior Customer Success Advisor
Cvent
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