In your Playable account, go to Videos. Select the video to add to your Marketo Email Template. Click on the Embed tab.

Select Marketo from the dropdown list.

In your Marketo dashboard, go to Marketing Activities.

Under Marketing Activities, click the New button and select New Program:

Select a Campaign Folder, add a name to the program, and Email on Program Type, and Email Send on Channel. Now you can hit the Create button:

Look for the Email box and hit New Email.

Enter your email name, select a template, and click the Create button on the top right.

Once the template loads, click on any text content in the email until a small settings icon appears. Then, click the Edit option:

Click the HTML Editor in the text editor.

Paste the Playable Embed Code into the HTML Source Editor and hit Apply.

Hit Save and the video should start playing in your Marketo email template.