Give the template a meaningful name that will help you find it

The text body, that you would send to the end user.

Variables should be wrapped in double curly brackets.

Example:

Hi {{first_name}}, there is a notification in your account. Click here:

Welcome back {USERNAME} to the game!

base64 encoded image. If sending an image for a MMS, then use standard multipart headers.

Third party identifier

Third party service mapping to external_id

Optional destination URL stored on the template. Message create does not fall back to this value; pass url on POST /message to include a tracking link.