Queued and sent by Mulaichat within seconds; the messages come back pending, and GET …/messages shows them sent, failed or unknown. Instagram allows replies only within 24 hours of the customer's last message (422 messaging_window_closed). text: up to 1,000 bytes. media_ids from the media library: JPG/PNG up to 8 MB (up to 10 go as one message), MP4/MOV up to 25 MB (one message each); they go before the text (422 attachment_unsupported, attachment_too_large). buttons (1-3, text up to 640 characters; Instagram's button template) or quick_replies (1-13, shown on phones only), not both, and only with text. A tap on a postback button or a quick reply comes back as a message of kind postback or quick_reply with postback { title, payload }, and in the message.received webhook. cards (1-10, Instagram's generic template; one card alone, 2-10 as a carousel scrolled sideways): each a title (up to 80 characters) and at least one of subtitle (80), media_id (JPG/PNG from the media library) or image_url (public https), default_action { url } and 1-3 buttons. Sent after the media and the text as a message of kind cards; not with buttons or quick_replies. Shown in the Instagram phone app only. An image Instagram cannot fetch gives no error: the card goes out without it (400 invalid_image_url for a private or non-https address). Also 422 messaging_permission_missing. At most 60 a minute per user. Requires the write scope.