OpenAPI spec (JSON) · Markdown

Wylto API reference

• Base URL: https://server.wylto.com
• Authentication: Authorization: Bearer <token>
• OpenAPI spec: https://wylto.com/openapi.json
• Interactive reference: https://wylto.com/docs/api

Send WhatsApp messages and templates, manage contacts and run campaigns from your own systems, and get webhooks when messages arrive or bookings change.

Getting started

1. In Wylto, open CRM → Settings → API Settings and copy your API token. Only the app owner can see it.
2. Send it as a Bearer token: Authorization: Bearer <token>.
3. Call the API at https://server.wylto.com. Requests and responses are JSON.

Webhooks

• Messages: Wylto posts each new WhatsApp message to your URL.
• Bookings: set up under Appointments → Settings → Webhooks to get created, rescheduled, cancelled and completed bookings, signed with your secret.

Errors

Failed requests return a 4xx or 5xx status with a JSON body that describes the problem.

WhatsApp

Send messages and templates, manage templates, download media and read your phone number details.

Send a message to a phone number

POST https://server.wylto.com/api/v1/wa/send

Request body

Example:

{
  "to": "+919876012345",
  "message": {
    "type": "text",
    "text": {
      "message": "Hi, this is a test message"
    }
  }
}

Responses

• 200: Message sent successfully.

• 400: Bad Request. The request was unacceptable, often due to missing a required parameter.

• 401: Unauthorized. The request did not include a correct authorization token.

• 500: Internal Server Error. Something went wrong on the server side.

Resolve WhatsApp media id to download URL (or stream file)

GET https://server.wylto.com/api/v1/wa/media/:mediaId

Uses the app's default WhatsApp connection to call the Meta Graph API for the given media id (e.g. message.image.id). By default returns JSON with a short-lived url and mime_type. With query action=download, resolves and streams the file in one request (WhatsApp token used server-side). Alternatively use POST /api/v1/wa/media/download with the returned url.

Parameters

Responses

• 200: Without action=download: JSON with url and mime_type. With action=download: raw file bytes (Content-Type from media metadata, or application/octet-stream).

{
  "url": "https://lookaside.fbsbx.com/whatsapp_business/attachments/?mid=...",
  "mime_type": "image/jpeg"
}

• 401: Unauthorized. Missing or invalid API bearer token.

• 500: Internal Server Error. Failed to resolve media (for example invalid media id or WhatsApp connection error).

• 502: Bad gateway. Returned when action=download and the download from Meta failed, or the resolved URL host was not allowed.

Download WhatsApp media from temporary URL

POST https://server.wylto.com/api/v1/wa/media/download

Fetches binary content from a short-lived url returned by GET /api/v1/wa/media/:mediaId, using the app's default WhatsApp connection Bearer token when calling Meta. Response body is the raw file. Only https URLs on allowed Meta hosts (lookaside.fbsbx.com and *.fbsbx.com) are permitted.

Request body

Example:

{
  "url": "https://lookaside.fbsbx.com/whatsapp_business/attachments/?mid=...",
  "mime_type": "image/jpeg",
  "filename": "photo.jpg"
}

Responses

• 200: Raw file bytes. Content-Type is taken from mime_type in the request when provided, otherwise application/octet-stream.

• 400: Bad request (missing url, invalid URL, or host not allowed).

• 401: Unauthorized. Missing or invalid API bearer token.

• 502: Bad gateway. Meta returned a non-success status or the download failed.

Send a message to a contact

POST https://server.wylto.com/api/v1/wa/send/:contactId

Parameters

Request body

Example:

{
  "message": {
    "type": "template",
    "template": {
      "templateName": "example_template_name",
      "header": {
        "type": "text",
        "text": "Your header text here"
      },
      "body": [
        {
          "type": "text",
          "text": "Your body text here"
        }
      ],
      "buttons": [
        {
          "type": "your_button_type",
          "payload": "your_button_payload",
          "index": 0
        }
      ]
    }
  }
}

Responses

• 200: Message sent successfully.

• 400: Bad Request. The request was unacceptable, often due to missing a required parameter.

• 401: Unauthorized. The request did not include a correct authorization token.

• 500: Internal Server Error. Something went wrong on the server side.

List WhatsApp templates

GET https://server.wylto.com/api/v1/wa/templates

Returns all WhatsApp message templates for the app's default connection.

Responses

• 200: Templates retrieved successfully.

• 401: Unauthorized.

• 500: Internal Server Error.

Create a WhatsApp template

POST https://server.wylto.com/api/v1/wa/templates

Request body

Example:

{
  "name": "welcome_message",
  "language": "en",
  "category": "MARKETING",
  "components": [
    {
      "type": "HEADER",
      "format": "TEXT",
      "text": "Welcome to {{1}}!"
    },
    {
      "type": "BODY",
      "text": "Hi {{1}}, thank you for joining us. We're excited to have you!"
    },
    {
      "type": "FOOTER",
      "text": "Reply STOP to unsubscribe"
    },
    {
      "type": "BUTTONS",
      "buttons": [
        {
          "type": "QUICK_REPLY",
          "text": "Learn More"
        }
      ]
    }
  ]
}

Responses

• 200: Template created successfully.

• 400: Bad Request. Invalid template format or missing required fields.

• 401: Unauthorized.

• 500: Internal Server Error.

Update a WhatsApp template

PUT https://server.wylto.com/api/v1/wa/templates/:templateId

Replaces the template's components. Name, language and category can't be changed. Meta reviews the template again after an edit, and limits how often an approved template can be edited.

Parameters

Request body

Example:

{
  "components": [
    {
      "type": "BODY",
      "text": "Your order #{{1}} is confirmed. It will reach you by {{2}}.",
      "example": {
        "body_text": [
          [
            "1001",
            "Friday"
          ]
        ]
      }
    }
  ]
}

Responses

• 200: Template updated.

{
  "success": true
}

• 400: Bad Request. Invalid components, or Meta rejected the edit.

• 401: Unauthorized.

• 500: Internal Server Error.

Delete a WhatsApp template

DELETE https://server.wylto.com/api/v1/wa/templates/:templateName

Deletes the template by name. This deletes every language of that template. A deleted name can't be reused for 30 days.

Parameters

Responses

• 200: Template deleted.

{
  "success": true
}

• 400: Bad Request. Template not found or Meta rejected the delete.

• 401: Unauthorized.

• 500: Internal Server Error.

Get template quality score

GET https://server.wylto.com/api/v1/wa/templates/:templateId/quality

Parameters

Responses

• 200: Template quality retrieved successfully.

{
  "id": "123456789",
  "name": "welcome_message",
  "status": "APPROVED",
  "qualityScore": "GREEN"
}

• 401: Unauthorized.

• 404: Template not found.

• 500: Internal Server Error.

Get phone number details

GET https://server.wylto.com/api/v1/wa/phone-number

Returns details about the WhatsApp phone number including quality rating and messaging limits.

Responses

• 200: Phone number details retrieved successfully.

{
  "verified_name": "My Business",
  "display_phone_number": "+1234567890",
  "quality_rating": "GREEN",
  "messaging_limit_tier": "TIER_10K",
  "platform_type": "CLOUD_API",
  "throughput": {
    "level": "STANDARD"
  },
  "code_verification_status": "VERIFIED",
  "last_onboarded_time": "2024-01-01T00:00:00Z",
  "id": "180876681785984"
}

• 400: WhatsApp connection not found.

• 401: Unauthorized.

• 500: Internal Server Error.

Contact

Create, update and read contacts, including UTM and activities.

Get a contact by phone number

GET https://server.wylto.com/api/v1/contact

Fetches a single contact by phone number. The phone number is normalized before lookup: spaces and dashes are stripped, '+' is auto-prepended if missing, and the value must contain at least 10 digits.

Parameters

Responses

• 200: Contact fetched successfully.

{
  "id": "contact_xyz789",
  "externalId": "crm-1029",
  "name": "jane doe",
  "phoneNumber": "+14155551234",
  "email": "jane@example.com",
  "message": "Met at trade show",
  "status": "status_abc123",
  "group": "group_sales",
  "source": "tradeshow",
  "eventAt": 1740009600000,
  "tags": [
    "tag_vip",
    "tag_newsletter"
  ],
  "createdAt": 1739923200000,
  "updatedAt": 1740013200000
}

• 400: Bad Request. The phoneNumber query parameter is missing or is not a valid phone number.

• 401: Unauthorized. The request did not include a correct authorization token.

• 404: Not Found. No contact matched the provided phone number.

• 500: Internal Server Error. Something went wrong on the server side.

Create a new contact

POST https://server.wylto.com/api/v1/contact

Creates a contact. Pass 'utm' to record which ad or campaign the lead came from. Returns 400 if the contact already exists; use PUT /contact to update it.

Request body

Example:

{
  "name": "Jane Doe",
  "phoneNumber": "+14155551234",
  "email": "jane@example.com",
  "source": "website",
  "utm": {
    "source": "google",
    "medium": "cpc",
    "campaign": "diwali_sale",
    "term": "running shoes",
    "content": "banner_a",
    "gclid": "Cj0KCQjw..."
  }
}

Responses

• 200: Contact created successfully.

• 400: Bad Request. The request was unacceptable, often due to missing a required parameter.

• 401: Unauthorized. The request did not include a correct authorization token.

• 500: Internal Server Error. Something went wrong on the server side.

Update a contact by phone number

PUT https://server.wylto.com/api/v1/contact

Looks up a contact by phone number and applies the same partial update semantics as PUT /contact/{contactId}. The phone number is normalized: '+' is auto-prepended if missing and the value must contain at least 10 digits. The lookup value can be passed via the 'phoneNumber' query parameter or the 'phoneNumber' field in the request body. Empty fields are ignored — only fields you provide are updated. Pass createIfContactNotPresent=true to create the contact from the body when no contact matches (same as POST /contact).

Parameters

Request body

Example:

{
  "statusName": "Qualified",
  "tagNames": [
    "VIP",
    "Newsletter"
  ]
}

Responses

• 200: Contact updated successfully, or created when createIfContactNotPresent=true and no contact matched.

{
  "id": "contact_xyz789",
  "externalId": "crm-1029",
  "name": "jane doe",
  "phoneNumber": "+14155551234",
  "email": "jane@example.com",
  "message": "Met at trade show",
  "status": "status_abc123",
  "group": "group_sales",
  "source": "tradeshow",
  "eventAt": 1740009600000,
  "tags": [
    "tag_vip",
    "tag_newsletter"
  ],
  "createdAt": 1739923200000,
  "updatedAt": 1740013200000
}

• 400: Bad Request. Invalid phone number, or a provided statusName / groupName / tagNames value did not match any configured entry.

• 401: Unauthorized. The request did not include a correct authorization token.

• 404: Not Found. No contact matched the provided phone number.

• 500: Internal Server Error. Something went wrong on the server side.

Get a contact by ID

GET https://server.wylto.com/api/v1/contact/:contactId

Fetches a single contact by its Wylto contact ID.

Parameters

Responses

• 200: Contact fetched successfully.

{
  "id": "contact_xyz789",
  "externalId": "crm-1029",
  "name": "jane doe",
  "phoneNumber": "+14155551234",
  "email": "jane@example.com",
  "message": "Met at trade show",
  "status": "status_abc123",
  "group": "group_sales",
  "source": "tradeshow",
  "eventAt": 1740009600000,
  "tags": [
    "tag_vip",
    "tag_newsletter"
  ],
  "createdAt": 1739923200000,
  "updatedAt": 1740013200000
}

• 400: Bad Request. The contactId path parameter is missing or empty.

• 401: Unauthorized. The request did not include a correct authorization token.

• 404: Not Found. No contact matched the provided ID.

• 500: Internal Server Error. Something went wrong on the server side.

Update a contact

PUT https://server.wylto.com/api/v1/contact/:contactId

Partial update for an existing contact identified by ID. Only the fields you include are written; empty strings and empty arrays are ignored. Use 'statusName' / 'groupName' / 'tagNames' to look up IDs by name (case-insensitive); the ID-form fields ('status' / 'group' / 'tags') take precedence when both are provided.

Parameters

Request body

Example:

{
  "statusName": "Qualified",
  "tagNames": [
    "VIP",
    "Newsletter"
  ]
}

Responses

• 200: Contact updated successfully.

{
  "id": "contact_xyz789",
  "externalId": "crm-1029",
  "name": "jane doe",
  "phoneNumber": "+14155551234",
  "email": "jane@example.com",
  "message": "Met at trade show",
  "status": "status_abc123",
  "group": "group_sales",
  "source": "tradeshow",
  "eventAt": 1740009600000,
  "tags": [
    "tag_vip",
    "tag_newsletter"
  ],
  "createdAt": 1739923200000,
  "updatedAt": 1740013200000
}

• 400: Bad Request. A provided statusName / groupName / tagNames value did not match any configured entry, or another field failed validation.

• 401: Unauthorized. The request did not include a correct authorization token.

• 500: Internal Server Error. Something went wrong on the server side.

Delete a contact

DELETE https://server.wylto.com/api/v1/contact/:contactId

Parameters

Responses

• 200: Contact deleted successfully.

• 400: Bad Request. The request was unacceptable, often due to missing a required parameter.

• 401: Unauthorized. The request did not include a correct authorization token.

• 500: Internal Server Error. Something went wrong on the server side.

Get activities for a contact

GET https://server.wylto.com/api/v1/contact/:contactId/activities

Returns a contact's activity history (status changes, notes, call logs, chats, broadcasts and more), newest first.

Parameters

Responses

• 200: Activities fetched successfully.

{
  "activities": [
    {
      "id": "act_123",
      "contactId": "contact_xyz789",
      "type": "STATUS_UPDATE",
      "from": "status_new",
      "to": "status_won",
      "author": "member_abc",
      "createdAt": 1740013200000
    },
    {
      "id": "act_122",
      "contactId": "contact_xyz789",
      "type": "NOTE",
      "note": "Asked for a demo next week",
      "author": "member_abc",
      "createdAt": 1740009600000
    }
  ]
}

• 400: Bad Request. contactId is missing or limit is out of range.

• 401: Unauthorized. The request did not include a correct authorization token.

• 404: Not Found. No contact matched the provided ID.

• 500: Internal Server Error. Something went wrong on the server side.

Campaigns

Create WhatsApp broadcast campaigns and read their reports.

Create and send a campaign

POST https://server.wylto.com/api/v1/campaigns

Creates a campaign and sends messages to the provided contacts. Only CSV type campaigns are supported via API.

Request body

Example:

{
  "campaignName": "January Promo",
  "contacts": [
    {
      "name": "John Doe",
      "phoneNumber": "+1234567890"
    },
    {
      "name": "Jane Smith",
      "phoneNumber": "+0987654321"
    }
  ],
  "message": {
    "type": "template",
    "template": {
      "templateName": "promo_offer",
      "language": "en",
      "body": [
        {
          "type": "text",
          "text": "20%"
        }
      ]
    }
  }
}

Responses

• 200: Campaign created and processing started.

• 400: Bad Request. Invalid campaign data.

• 401: Unauthorized.

• 500: Internal Server Error.

Get campaign report

GET https://server.wylto.com/api/v1/campaigns/:campaignId/report

Returns campaign details and all message delivery statuses.

Parameters

Responses

• 200: Campaign report retrieved successfully.

{
  "campaign": {
    "id": "abc123",
    "name": "January Promo",
    "type": "csv",
    "status": "completed",
    "channel": "whatsapp",
    "count": 100,
    "sent": 95,
    "delivered": 90,
    "read": 50,
    "failed": 5,
    "createdAt": 1704067200000
  },
  "messages": [
    {
      "id": "msg123",
      "name": "John Doe",
      "phoneNumber": "+1234567890",
      "state": "delivered",
      "buttonClicks": [],
      "createdAt": 1704067200000
    },
    {
      "id": "msg124",
      "name": "Jane Smith",
      "phoneNumber": "+0987654321",
      "state": "failed",
      "error": "131026- Message undeliverable",
      "buttonClicks": [],
      "createdAt": 1704067200000
    }
  ]
}

• 401: Unauthorized.

• 404: Campaign not found.

• 500: Internal Server Error.

Webhooks

Messages Wylto posts to your server when a WhatsApp message arrives.

on new Message

Webhook: Wylto sends POST to your URL.

Payload

When you subscribe for a message webhook,Wylto sends this payload when a new message is received.

Responses

• 200: Your server response after receiving the event

Booking webhooks

Messages Wylto posts to your server when a booking is created, rescheduled, cancelled or completed.

Booking created

Webhook: Wylto sends POST to your URL.

Sent when someone books a slot: from a booking page, an embed, the chatbot or the AI agent.

Set up under Appointments → Settings → Webhooks in Wylto: add an HTTPS URL, optional custom headers and an optional signing secret, pick the events, and choose all booking pages or some. Wylto sends a JSON POST. Reply with any 2xx status within 10 seconds; failed deliveries are not retried and show in the deliveries log.

Headers

Payload

Example:

{
  "triggerEvent": "BOOKING_CREATED",
  "createdAt": "2026-11-20T10:02:11Z",
  "payload": {
    "bookingId": "HRXLZixYtwudTxclPcbE",
    "eventTypeId": "yJ08Ls8T4CuOk2ZNhFFc",
    "eventTypeName": "Product demo",
    "status": "scheduled",
    "startTime": "2026-11-24T05:30:00Z",
    "endTime": "2026-11-24T06:00:00Z",
    "duration": 30,
    "timeZone": "Asia/Kolkata",
    "location": "video",
    "meetingLink": "https://meet.google.com/abc-defg-hij",
    "contact": {
      "id": "k2VdN8pQ1xYz",
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000"
    },
    "assignedTo": {
      "id": "u7Ty3Lm9",
      "name": "Priya",
      "email": "priya@yourcompany.com"
    },
    "responses": {
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000",
      "notes": "Interested in the Growth plan"
    },
    "source": "event-booking",
    "utm": {
      "source": "facebook",
      "medium": "paid_social",
      "campaign": "diwali_sale"
    },
    "rescheduleUrl": "https://app.wylto.com/booking-manage?…",
    "cancelUrl": "https://app.wylto.com/booking-manage?…"
  }
}

Responses

• 2XX: Received. Any 2xx counts as delivered.

Booking rescheduled

Webhook: Wylto sends POST to your URL.

Sent when the booker or your team moves a booking. previousStartTime has the old start.

Set up under Appointments → Settings → Webhooks in Wylto: add an HTTPS URL, optional custom headers and an optional signing secret, pick the events, and choose all booking pages or some. Wylto sends a JSON POST. Reply with any 2xx status within 10 seconds; failed deliveries are not retried and show in the deliveries log.

Headers

Payload

Example:

{
  "triggerEvent": "BOOKING_RESCHEDULED",
  "createdAt": "2026-11-20T10:02:11Z",
  "payload": {
    "bookingId": "HRXLZixYtwudTxclPcbE",
    "eventTypeId": "yJ08Ls8T4CuOk2ZNhFFc",
    "eventTypeName": "Product demo",
    "status": "rescheduled",
    "startTime": "2026-11-25T09:00:00Z",
    "endTime": "2026-11-25T09:30:00Z",
    "duration": 30,
    "timeZone": "Asia/Kolkata",
    "location": "video",
    "meetingLink": "https://meet.google.com/abc-defg-hij",
    "contact": {
      "id": "k2VdN8pQ1xYz",
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000"
    },
    "assignedTo": {
      "id": "u7Ty3Lm9",
      "name": "Priya",
      "email": "priya@yourcompany.com"
    },
    "responses": {
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000",
      "notes": "Interested in the Growth plan"
    },
    "source": "event-booking",
    "utm": {
      "source": "facebook",
      "medium": "paid_social",
      "campaign": "diwali_sale"
    },
    "rescheduleUrl": "https://app.wylto.com/booking-manage?…",
    "cancelUrl": "https://app.wylto.com/booking-manage?…",
    "previousStartTime": "2026-11-24T05:30:00Z"
  }
}

Responses

• 2XX: Received. Any 2xx counts as delivered.

Booking cancelled

Webhook: Wylto sends POST to your URL.

Sent when the booker or your team cancels a booking.

Set up under Appointments → Settings → Webhooks in Wylto: add an HTTPS URL, optional custom headers and an optional signing secret, pick the events, and choose all booking pages or some. Wylto sends a JSON POST. Reply with any 2xx status within 10 seconds; failed deliveries are not retried and show in the deliveries log.

Headers

Payload

Example:

{
  "triggerEvent": "BOOKING_CANCELLED",
  "createdAt": "2026-11-20T10:02:11Z",
  "payload": {
    "bookingId": "HRXLZixYtwudTxclPcbE",
    "eventTypeId": "yJ08Ls8T4CuOk2ZNhFFc",
    "eventTypeName": "Product demo",
    "status": "cancelled",
    "startTime": "2026-11-24T05:30:00Z",
    "endTime": "2026-11-24T06:00:00Z",
    "duration": 30,
    "timeZone": "Asia/Kolkata",
    "location": "video",
    "meetingLink": "https://meet.google.com/abc-defg-hij",
    "contact": {
      "id": "k2VdN8pQ1xYz",
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000"
    },
    "assignedTo": {
      "id": "u7Ty3Lm9",
      "name": "Priya",
      "email": "priya@yourcompany.com"
    },
    "responses": {
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000",
      "notes": "Interested in the Growth plan"
    },
    "source": "event-booking",
    "utm": {
      "source": "facebook",
      "medium": "paid_social",
      "campaign": "diwali_sale"
    },
    "rescheduleUrl": "https://app.wylto.com/booking-manage?…",
    "cancelUrl": "https://app.wylto.com/booking-manage?…"
  }
}

Responses

• 2XX: Received. Any 2xx counts as delivered.

Booking completed

Webhook: Wylto sends POST to your URL.

Sent when your team marks a booking as completed. minutesOfMeeting has the notes, if any.

Set up under Appointments → Settings → Webhooks in Wylto: add an HTTPS URL, optional custom headers and an optional signing secret, pick the events, and choose all booking pages or some. Wylto sends a JSON POST. Reply with any 2xx status within 10 seconds; failed deliveries are not retried and show in the deliveries log.

Headers

Payload

Example:

{
  "triggerEvent": "BOOKING_COMPLETED",
  "createdAt": "2026-11-20T10:02:11Z",
  "payload": {
    "bookingId": "HRXLZixYtwudTxclPcbE",
    "eventTypeId": "yJ08Ls8T4CuOk2ZNhFFc",
    "eventTypeName": "Product demo",
    "status": "completed",
    "startTime": "2026-11-24T05:30:00Z",
    "endTime": "2026-11-24T06:00:00Z",
    "duration": 30,
    "timeZone": "Asia/Kolkata",
    "location": "video",
    "meetingLink": "https://meet.google.com/abc-defg-hij",
    "contact": {
      "id": "k2VdN8pQ1xYz",
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000"
    },
    "assignedTo": {
      "id": "u7Ty3Lm9",
      "name": "Priya",
      "email": "priya@yourcompany.com"
    },
    "responses": {
      "name": "Asha",
      "email": "asha@example.com",
      "phone": "919800000000",
      "notes": "Interested in the Growth plan"
    },
    "source": "event-booking",
    "utm": {
      "source": "facebook",
      "medium": "paid_social",
      "campaign": "diwali_sale"
    },
    "rescheduleUrl": "https://app.wylto.com/booking-manage?…",
    "cancelUrl": "https://app.wylto.com/booking-manage?…",
    "minutesOfMeeting": "Wants the Growth plan. Send pricing by Friday."
  }
}

Responses

• 2XX: Received. Any 2xx counts as delivered.

Test ping

Webhook: Wylto sends POST to your URL.

Sent when you press Send test on a webhook. Sample data only.

Set up under Appointments → Settings → Webhooks in Wylto: add an HTTPS URL, optional custom headers and an optional signing secret, pick the events, and choose all booking pages or some. Wylto sends a JSON POST. Reply with any 2xx status within 10 seconds; failed deliveries are not retried and show in the deliveries log.

Headers

Payload

Example:

{
  "triggerEvent": "PING",
  "createdAt": "2026-11-20T10:02:11Z",
  "payload": {
    "bookingId": "test",
    "eventTypeName": "Test booking",
    "status": "scheduled",
    "startTime": "2026-11-24T05:30:00Z",
    "endTime": "2026-11-24T06:00:00Z",
    "duration": 30,
    "contact": {
      "name": "Test contact",
      "email": "test@example.com",
      "phone": "919999999999"
    },
    "utm": {
      "source": "facebook",
      "medium": "paid_social",
      "campaign": "test_campaign"
    }
  }
}

Responses

• 2XX: Received. Any 2xx counts as delivered.