A rich link is a URL provided through an image or video that you display in a chat bubble. When people tap the image or video, it opens the link on your website, where you can display information about the item or play the video. Rich links help customers verify that they've selected the item they want before they get more details about it or purchase it. Because you display a rich link within the Messages app, people can tap the link to visit your website and easily return to the conversation. For developer guidance, see Sending Rich Link Messages.
Keep the experience focused on the product. Avoid overloading people with too many different images or videos.
Use descriptive, approachable language to title a rich link. The title should provide context for the image or video displayed above it. Avoid using your company name or URL to title a rich link because this information doesn't help customers understand why they might want to tap it. Display your website URL below the title so people know where the link will take them.
Always include a video thumbnail or image. If you don't supply a thumbnail for a rich link, customers won't see a preview of the content and might even interpret the message as an unwanted communication from your company. Similarly, displaying a plain link without an image doesn't provide context or encourage customers to open it.