LINE Imagemap are message an image with multiple tappable areas. When a user taps one of these areas, you can redirect them to a webpage or send a message on their behalf. You can also play a video on the image and display a label with a hyperlink after the video is finished.
LINE Imagemap message is not a message type in Conversation API but it is possible to send Imagemap by overriding with Explicit Channel Message.
Alternatively you can use another message type provided by the Conversation API such as Carousel message type. Sinch provides a Message Composer tool on the dashboard that would help you to easily build a message and visualize it in any social channels provided by the Conversation API.
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