This video is related to the Third Party Integrations in Step #4 inside your campaign.
You need to make sure your contacts exist in your CRM/email tool before you activate the campaign and start generating videos so we can match the video to the right email address.
If you plan to deliver videos automatically (e.g. as soon as they signup), you need to send our data to your CRM via Webhooks, Pabbly, or Zapier when "New Video Ready" (Trigger) - See the video below: