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The recommended way to set both the message and the front image is to send a complete creative with creative_id — see Send a Creative. The options below set the message per request instead.
The message content specifies the content the thanks.io handwriting engine will place on the mailer.
  • For postcards this will specify content for back of postcard.
  • For notecards and giftcards this will specify content for the interior of the card.
  • For windowed and windowless letters this will specify content for the cover letter.
In all cases the message content is overlayed on top of the front image if specified. The content can be specified in two different ways:
  • The message field can be used to provide the text content directly.
  • A message_template ID can be specified to use a pre-designed thanks.io message template. Message templates can have QR Codes and handwriting settings associated with them.