Status de mensagem

const valor = body.entry[0].changes[0].value

if (valor.messages) {
  // mensagem recebida do cliente
} else if (valor.statuses) {
  // atualização de uma mensagem que você enviou
}

{
  "object": "whatsapp_business_account",
  "entry": [
    {
      "id": "1234567890123456",
      "changes": [
        {
          "value": {
            "messaging_product": "whatsapp",
            "metadata": {
              "display_phone_number": "5511988887777",
              "phone_number_id": "1234567890123456"
            },
            "statuses": [
              {
                "id": "wamid.HBgNNTUxMTk5OTk5OTk5ORUCABEYFjNFQjA=",
                "status": "sent",
                "timestamp": "1789529602",
                "recipient_id": "5511999999999",
                "conversation": {
                  "id": "CONVERSATION_ID",
                  "expiration_timestamp": "1789616002",
                  "origin": { "type": "marketing" }
                },
                "pricing": {
                  "billable": true,
                  "pricing_model": "PMP",
                  "type": "regular",
                  "category": "marketing"
                }
              }
            ]
          },
          "field": "messages"
        }
      ]
    }
  ]
}

{
  "statuses": [
    {
      "id": "wamid.HBgNNTUxMTk5OTk5OTk5ORUCABEYFjNFQjE=",
      "status": "failed",
      "timestamp": "1789529652",
      "recipient_id": "5511999999999",
      "errors": [
        {
          "code": 131047,
          "title": "Re-engagement message",
          "message": "Re-engagement message",
          "error_data": {
            "details": "Message failed to send because more than 24 hours have passed since the customer last replied to this number."
          },
          "href": "https://developers.facebook.com/docs/whatsapp/cloud-api/support/error-codes/"
        }
      ]
    }
  ]
}