When sending a reaction message, only a sent message webhook (status set to sent) will be triggered; delivered and read message webhooks will not be triggered.

Request syntax

Use the POST /<WHATSAPP_BUSINESS_PHONE_NUMBER_ID>/messages endpoint to apply an emoji reaction on a message you have received from a WhatsApp user.

curl 'https://graph.facebook.com/<API_VERSION>/<WHATSAPP_BUSINESS_PHONE_NUMBER_ID>/messages' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <ACCESS_TOKEN>' \
-d '
{
  "messaging_product": "whatsapp",
  "recipient_type": "individual",
  "to": "<WHATSAPP_USER_PHONE_NUMBER>",
  "type": "reaction",
  "reaction": {
    "message_id": "<WHATSAPP_MESSAGE_ID>",
    "emoji": "<EMOJI>"
  }
}'

Request parameters

Placeholder	Description	Example Value
`<ACCESS_TOKEN>` String	Required. System token or business token.	`EAAAN6tcBzAUBOZC82CW7iR2LiaZBwUHS4Y7FDtQxRUPy1PHZClDGZBZCgWdrTisgMjpFKiZAi1FBBQNO2IqZBAzdZAA16lmUs0XgRcCf6z1LLxQCgLXDEpg80d41UZBt1FKJZCqJFcTYXJvSMeHLvOdZwFyZBrV9ZPHZASSqxDZBUZASyFdzjiy2A1sippEsF4DVV5W2IlkOSr2LrMLuYoNMYBy8xQczzOKDOMccqHEZD`
`<API_VERSION>` String	Optional. Graph API version.	v25.0
`<EMOJI>` String	Required. Unicode escape sequence of the emoji, or the emoji itself, to apply to the user message.	Unicode escape sequence example: `\uD83D\uDE00` Emoji example: 😀
`<WHATSAPP_MESSAGE_ID>` String	Required. WhatsApp message ID of message you want to apply the emoji to. If the message you are reacting to is more than 30 days old, doesn’t correspond to any message in the chat thread, has been deleted, or is itself a reaction message, the reaction message will not be delivered and you will receive a messages webhook with error code `131009`.	`wamid.HBgLMTY0NjcwNDM1OTUVAgASGBQzQUZCMTY0MDc2MUYwNzBDNTY5MAA=`
`<WHATSAPP_BUSINESS_PHONE_NUMBER_ID>` String	Required. WhatsApp business phone number ID.	`106540352242922`
`<WHATSAPP_USER_PHONE_NUMBER>` String	Required. WhatsApp user phone number.	`+16505551234`

Example request

Example request to apply the grinning face emoji (😀) to a previously received user message.

curl 'https://graph.facebook.com/v25.0/106540352242922/messages' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer EAAJB...' \
-d '
{
  "messaging_product": "whatsapp",
  "recipient_type": "individual",
  "to": "+16505551234",
  "type": "reaction",
  "reaction": {
    "message_id": "wamid.HBgLMTY0NjcwNDM1OTUVAgASGBQzQUZCMTY0MDc2MUYwNzBDNTY5MAA=",
    "emoji": "\uD83D\uDE00"
  }
}'

Example response

{
  "messaging_product": "whatsapp",
  "contacts": [
    {
      "input": "+16505551234",
      "wa_id": "16505551234"
    }
  ],
  "messages": [
    {
      "id": "wamid.HBgLMTY0NjcwNDM1OTUVAgARGBI1RjQyNUE3NEYxMzAzMzQ5MkEA"
    }
  ]
}

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