Reaction Message

To send a text message, make POST it to /{{Channel-ID}}/messages and attach a message reaction object with type = reaction,then add reaction objectlike the sample below

{
    "messaging_product": "whatsapp",
    "recipient_type": "individual",
    "to": "{{Recipient-Phone-Number}}",
    "type": "reaction",
    "reaction": {
        "message_id": "<WAM_ID>",
        "emoji": "<EMOJI>"
    }
}

A successful response includes an object with an identifier prefixed with wamid. Use the wamid to track your message status.

please refer to this document as well to see the possible of reaction object