Contacts messages webhook reference

{
  "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>",
                "id": "<WHATSAPP_MESSAGE_ID>",
                "timestamp": "<WEBHOOK_TRIGGER_TIMESTAMP>",
                "type": "contacts",
                "contacts": [
                  {
                    "addresses": [
                      {
                        "city": "<CONTACT_CITY>",
                        "country": "<CONTACT_COUNTRY>",
                        "country_code": "<CONTACT_COUNTRY_CODE>",
                        "state": "<CONTACT_STATE>",
                        "street": "<CONTACT_STREET>",
                        "type": "<CONTACT_ADDRESS_TYPE>",
                        "zip": "<CONTACT_ZIP>"
                      }
                    ],
                    "birthday": "<CONTACT_BIRTHDAY>",
                    "emails": [
                      {
                        "email": "<CONTACT_EMAIL>",
                        "type": "<CONTACT_EMAIL_TYPE>"
                      }
                    ],
                    "name": {
                      "formatted_name": "<CONTACT_FORMATTED_NAME>",
                      "first_name": "<CONTACT_FIRST_NAME>",
                      "last_name": "<CONTACT_LAST_NAME>",
                      "middle_name": "<CONTACT_MIDDLE_NAME>",
                      "suffix": "<CONTACT_NAME_SUFFIX>",
                      "prefix": "<CONTACT_NAME_PREFIX>"
                    },
                    "org": {
                      "company": "<CONTACT_ORG_COMPANY>",
                      "department": "<CONTACT_ORG_DEPARTMENT>",
                      "title": "<CONTACT_ORG_TITLE>"
                    },
                    "phones": [
                      {
                        "phone": "<CONTACT_PHONE>",
                        "wa_id": "<CONTACT_WHATSAPP_PHONE_NUMBER>",
                        "type": "<CONTACT_PHONE_TYPE>"
                      }
                    ],
                    "urls": [
                      {
                        "url": "<CONTACT_URL>",
                        "type": "<CONTACT_URL_TYPE>"
                      }
                    ]
                  }
                ],

                <!-- only included if message sent via a Click to WhatsApp ad -->
                "referral": {
                  "source_url": "<AD_URL>",
                  "source_id": "<AD_ID>",
                  "source_type": "ad",
                  "body": "<AD_PRIMARY_TEXT>",
                  "headline": "<AD_HEADLINE>",
                  "media_type": "<AD_MEDIA_TYPE>",
                  "image_url": "<AD_IMAGE_URL>",
                  "video_url": "<AD_VIDEO_URL>",
                  "thumbnail_url": "<AD_VIDEO_THUMBNAIL>",
                  "ctwa_clid": "<AD_CLICK_ID>",
                  "welcome_message": {
                    "text": "<AD_GREETING_TEXT>"
                  }
                }
              }
            ]
          },
          "field": "messages"
        }
      ]
    }
  ]
}

{
  "object": "whatsapp_business_account",
  "entry": [
    {
      "id": "102290129340398",
      "changes": [
        {
          "value": {
            "messaging_product": "whatsapp",
            "metadata": {
              "display_phone_number": "15550783881",
              "phone_number_id": "106540352242922"
            },
            "contacts": [
              {
                "profile": {
                  "name": "Sheena Nelson"
                },
                "wa_id": "16505551234"
              }
            ],
            "messages": [
              {
                "from": "16505551234",
                "id": "wamid.HBgLMTY1MDM4Nzk0MzkVAgASGBQzQTRBNjU5OUFFRTAzODEwMTQ0RgA=",
                "timestamp": "1744344496",
                "type": "contacts",
                "contacts": [
                  {
                    "name": {
                      "first_name": "Barbara",
                      "last_name": "Johnson",
                      "formatted_name": "Barbara J. Johnson"
                    },
                    "org": {
                      "company": "Social Tsunami"
                    },
                    "phones": [
                      {
                        "phone": "+1 (415) 555-0829",
                        "wa_id": "14125550829",
                        "type": "MOBILE"
                      }
                    ]
                  }
                ]
              }
            ]
          },
          "field": "messages"
        }
      ]
    }
  ]
}