How to create a message?
From your dashboard go to Settings > Messages. At the top-right click New message and write your first message.
Add a catchy subject and the actual content of the email. By default all messages are saved as a draft. And only after marking a message as “active” will you be able to use it in an automation.
Automations are how lifecycle messages are send in Seos. Head over to the automation docs to learn more about how to set these up.