Group messages webhook reference

Updated: Jun 17, 2026

This reference describes trigger events and payload contents for the WhatsApp Business account messages webhook for messages that are sent to a group, or received from a group.

Triggers

• A WhatsApp user or a business sends a message to a group.
• A WhatsApp user or a business receives a message within a group.

Syntax

{  
  "object": "whatsapp_business_account",  
  "entry": [  
    {  
      "id": "<WHATSAPP_BUSINESS_ACCOUNT_ID>",  
      "changes": [  
        {  
          "value": {  
            "messaging_product": "whatsapp",  
            "metadata": {  
              "display_phone_number": "<BUSINESS_DISPLAY_PHONE_NUMBER>",  
              "phone_number_id": "<BUSINESS_PHONE_NUMBER_ID>"  
            },  
            "contacts": [  
              {  
                "profile": {  
                  "name": "<WHATSAPP_USER_PROFILE_NAME>"  
                },  
                "wa_id": "<WHATSAPP_USER_ID>",  
                "identity_key_hash": "<IDENTITY_KEY_HASH>" <!-- only included if identity change check enabled -->  
              }  
            ],  
            "messages": [  
              {  
                "from": "<WHATSAPP_USER_PHONE_NUMBER>",  
                "group_id": "<GROUP_ID>",  
                "id": "<WHATSAPP_MESSAGE_ID>",  
                "timestamp": "<WEBHOOK_TRIGGER_TIMESTAMP>",  
                "text": {  
                  "body": "<MESSAGE_TEXT_BODY>"  
                },  
                "type": "<MESSAGE_TYPE>"  
              }  
            ],  
          },  
          "field": "messages"  
        }  
      ]  
    }  
  ]  
}

Parameters

Placeholder	Description	Example value
<BUSINESS_DISPLAY_PHONE_NUMBER> String	Business display phone number.	15550783881
<BUSINESS_PHONE_NUMBER_ID> String	Business phone number ID.	106540352242922
<GROUP_ID> String	The string identifier of a group made using the Groups API. This field appears when a WhatsApp user or business sends, receives, or reads a message in a group. Learn more about the Groups API	"Y2FwaV9ncm91cDoxNzA1NTU1MDEzOToxMjAzNjM0MDQ2OTQyMzM4MjAZD"
<IDENTITY_KEY_HASH> String	Identity key hash. Only included if you have enabled the identity change check feature.	DF2lS5v2W6x=
<MESSAGE_TEXT_BODY> String	Text body of the message.	What do you all think about this?
<MESSAGE_TYPE> String	The type of message being sent. Will change depending on the message sent to the group. Currently, the Groups API supports: * Text * Media * Text-based templates * Media-based templates	text
<WHATSAPP_BUSINESS_ACCOUNT_ID> String	WhatsApp Business Account ID.	102290129340398
<WHATSAPP_MESSAGE_ID> String	WhatsApp message ID.	wamid.HBgLMTY1MDM4Nzk0MzkVAgASGBQzQUFERjg0NDEzNDdFODU3MUMxMAA=
<WEBHOOK_TRIGGER_TIMESTAMP> String	Unix timestamp indicating when the webhook was triggered.	1739321024
<WHATSAPP_USER_PHONE_NUMBER> String	WhatsApp user phone number. This is the same value returned by the API as the input value when sending a message to a WhatsApp user. Note that a WhatsApp user's phone number and ID may not always match.	+16505551234
<WHATSAPP_USER_PROFILE_NAME> String	WhatsApp user's name as it appears in their profile in the WhatsApp client.	Sheena Nelson
<WHATSAPP_USER_ID> String	WhatsApp user ID. Note that a WhatsApp user's ID and phone number may not always match.	16505551234

Example

The following example shows a group messages webhook payload.

{  
  "object": "whatsapp_business_account",  
  "entry": [  
    {  
      "id": "102290129340398",  
      "changes": [  
        {  
          "value": {  
            "messaging_product": "whatsapp",  
            "metadata": {  
              "display_phone_number": "15550783881",  
              "phone_number_id": "106540352242922"  
            },  
            "contacts": [  
              {  
                "profile": {  
                  "name": "Tiago Mingo"  
                },  
                "wa_id": "16505551234"  
              }  
            ],  
            "messages": [  
              {  
                "from": "16505551234",  
                "group_id": "HBgLMTY1MDM4Nzk0MzkVAgASGBQzQTRBNjU5OUFFRTAzODEwMTQ0RgA",  
                "id": "wamid.HASDI128HJOPUERIH82ahdasd09ASDHi5>",  
                "timestamp": "1744344496",  
                "text": {  
                  "body": "What does everyone think about this?"  
                },  
                "type": "text"  
              }  
            ]  
          },  
          "field": "messages"  
        }  
      ]  
    }  
  ]  
}