Quick answer. A rich card is a single message combining media (image, GIF, video, or PDF), a title, a description, and tap-to-act buttons — at least one of media, title, or description is required. Cards render vertically or horizontally and can hold up to four suggested replies/actions. Rich cards are ideal for order confirmations, appointment reminders, and product highlights where one strong visual plus a button does the work.
A standalone rich card with an image and an action button:
{ "contentMessage": { "richCard": { "standaloneCard": {
"cardOrientation": "VERTICAL",
"cardContent": {
"title": "Your order shipped!",
"description": "Arriving Fri, Jun 12.",
"media": { "height": "MEDIUM", "contentInfo": {
"fileUrl": "https://shop.example/box.jpg" } },
"suggestions": [
{ "action": { "text": "Track package", "postbackData": "trk_1043",
"openUrlAction": { "url": "https://shop.example/track/1043" } } }
]
} } } } }