In the Emailify export panel, select the DotDitigal option from the dropdown list, then paste in a valid DotDitigal API user details , which can be generated from your DotDitigal account settings page. Then you'll also need to select your region from the drop down list in the plugin.

When you're ready, click the Upload To DotDitigal button to start exporting the emails you've selected from Figma to HTML, and have them automatically be uploaded to your DotDitigal templates.