This document explains how to offer your business customers pre-verified business phone numbers. Pre-verified business phone numbers are WhatsApp business phone numbers that have already been verified by you, eliminating the need for customers to have to contact you for a one-time password.

Note that pre-verified business phone numbers are represented by WhatsApp Business Pre-Verified Phone Number objects, which are temporary. When a business customer selects one of these numbers and completes the Embedded Signup flow, the temporary object will be replaced by a valid WhatsApp Business Phone Number object. You must get this new object’s ID and use it to register the number within 90 days.

Requirements

Your business must be an approved Solution Partner.

The app user must be a business admin on the business account that pre-verified business phone numbers are added to.

A User or System User access token.

The business_management permission.

Business phone numbers must be valid.

Limitations

You are responsible for keeping track of who has claimed a pre-verified business phone number.

If a pre-verified business phone number is not claimed by an end client in the Embedded Signup flow within 90 days of verification, the number will revert to an unverified status and must be verified again to have its status restored for another 90 days.

Unclaimed pre-verified business phone numbers can’t be re-verified until 45 days before they are scheduled to revert to an unverified status. This time is indicated by the verification_expiry_time field.

If you add a phone number to your pool of pre-verified business phone numbers (Step 1) but do not verify it within 90 days (Step 3), it will be removed from your pool and you will have to add it again.

Once a business customer claims a pre-verified business phone number, you have 90 days to register it.

Creating pre-verified numbers

Follow these steps to create a pre-verified business phone number, surface it in Embedded Signup, and register it after it has been claimed by a business customer.

Step 1: Create a pre-verified business phone number

Use the Add Phone Numbers API to add a pre-verified business phone number to your business portfolio’s pool of business phone numbers.

Request Syntax

POST /<BUSINESS_PORTFOLIO_ID>/add_phone_numbers
  ?phone_number=<PHONE_NUMBER>

Response

Upon success, the API will return a WhatsApp Business Pre-Verified Phone Number ID. Capture this value for use in the next request.

{
  "id": "<WHATSAPP_BUSINESS_PRE_VERIFIED_PHONE_NUMBER_ID>"
}

Sample Request

curl -X POST 'https://graph.facebook.com/v25.0/506914307656634/add_phone_numbers?phone_number=15550783881' \
-H 'Authorization: Bearer EAAJB...'

Sample Response

{
  "id": "106540352242922"
}

Step 2: Request a verification code

Use the Request Verification Code API to request a one-time-password over SMS or voice for the newly created pre-verified business phone number.

Request Syntax

POST /<WHATSAPP_BUSINESS_PRE_VERIFIED_PHONE_NUMBER_ID>/request_code
  ?code_method=<CODE_METHOD>
  &language=<LANGUAGE>

Response

Upon success, the API will return true.

{
  "success": <SUCCESS>
}

In addition, we will send an SMS or voice message containing a one-time-password to the phone number. Capture the one-time-password for use in the next request.

One-Time-Password SMS Syntax

WhatsApp code <CODE>

One-Time-Password Voice Message Syntax

Repeated three times.

Verification code is <CODE>

Sample Request

curl -X POST 'https://graph.facebook.com/v25.0/106540352242922/request_code?code_method=SMS&language=en_US' \
-H 'Authorization: Bearer EAAJB...'

Sample Response

{
  "success": true
}

Sample One-Time-Password SMS Message

WhatsApp code 123-456

Sample One-Time-Password Voice Message

Repeated three times.

Verification code is 123456

Step 3: Verify the number

Use the Verify Code API to verify the number using its one-time-password.

Request Syntax

POST /<WHATSAPP_BUSINESS_PRE_VERIFIED_PHONE_NUMBER_ID>/verify_code
  ?code=<CODE>

Response

Upon success, the API will return true and the number will have its code_verification_status set to VERIFIED for 90 days.

{
  "success": <SUCCESS>
}

Sample Request

curl -X POST 'https://graph.facebook.com/v25.0/106540352242922/verify_code?code=123456' \
-H 'Authorization: Bearer EAAJB...'

Sample Response

{
  "success": true
}

Once you have a pre-verified business phone number with a verified status (or a set of such numbers), display them in the new Embedded Signup flow.

You can display pre-verified business phone numbers in the Embedded Signup flow using pre-filled form data. To do this, add a preVerifiedPhone object with an ids property to the setup object and assign the IDs of your pre-verified business phone numbers as an array of strings to the ids property:

{
  scope: "<SCOPE>",
  extras: {
    feature: "<FEATURE>",
    setup: {
      preVerifiedPhone: {
        ids: [<IDS>]
      }
    }
  }
}

For example:

{
  scope: "business_management,whatsapp_business_management",
  extras: {
    feature: "whatsapp_embedded_signup",
    version: 2,
    setup: {
  business: {
    name: "Acme Inc.",
    email: "johndoe@acme.com",
    phone: {
      code: 1,
      number: "6505551234"
        },
    website: "https://www.acme.com",
        address: {
          streetAddress1: "1 Acme Way",
          city: "Acme Town",
          state: "CA",
          zipPostal: "94000",
          country: "US"
        },
        timezone: "UTC-08:00"
      },
      phone: {
        displayName: "Acme Inc.",
        category: "ENTERTAIN",
        description: "Gears and widgets"
      },
      preVerifiedPhone: {
        ids: ["106540352242922","105954558954427"]
      }
    }
  }
}

Note that if a pre-verified business phone number with a status of VERIFIED is not claimed within 90 days of verification, its status will be set to UNVERIFIED but it will still appear in the Embedded Signup flow. If a business customer attempts to claim an unverified number, they must complete verification on their own, which means they must request a one-time password from you.

To prevent this experience, we recommend that you keep track of when you verified a number and re-verify it before it reverts to an unverified state.

If you don’t know when you last verified a given pre-verified business phone number, request the code_verification_time and verification_expiry_time fields on the pre-verified business phone number ID. These fields indicate its most recent verification time and its verification expiration time.

See Getting claimed phone number IDs.

Getting and registering claimed phone numbers

Once a business customer claims a pre-verified business phone number, it will be replaced with a verified WhatsApp business phone number (a WhatsApp Business Phone Number object with a code_verification_status set to VERIFIED).

You will have 90 days to register this number using its ID. If you do not register it within this time frame, it will revert to an UNVERIFIED status and you will have to request a new verification code and use the code to verify the WhatsApp business phone number again.

Getting claimed numbers via session logging

If you are using session logging, the ID will be returned in a message event and captured by your event listener. Send this ID to your server and then use it to register the WhatsApp business phone number.

Getting claimed numbers via API

If you are not using session logging, use the Phone Numbers API to get a list of WhatsApp business phone numbers on the WhatsApp Business Account.

Parse for the display_phone_number property on each object returned in the result set. If an object in the result set has a display_phone_number value that matches a number you used to create a pre-verified business phone number, the object represents the WhatsApp business phone number that has replaced the pre-verified business phone number. Copy this object’s ID and use it to register the WhatsApp business phone number.

Alternatively, you can use the same endpoint with field expansion to request the display_phone_number field and specify the display phone number. For example:

GET /102290129340398/phone_numbers?display_phone_number=16505551234

Get pre-verified business phone numbers

Use the Preverified Numbers API to get a list of all WhatsApp Business Pre-Verified Phone Number objects, regardless of their verification status, in your business account’s pool of pre-verified business phone numbers:

GET /<BUSINESS_ACCOUNT_ID>/preverified_numbers

Results are automatically sorted in order of creation time. You can also use field expansion to request the code_verification_status field to have the API only return pre-verified business phone numbers with the indicated verification state:

GET /<BUSINESS_ACCOUNT_ID>/preverified_numbers?code_verification_status=VERIFIED

Use the Share Preverified Numbers API to share pre-verified business phone numbers with a multi-partner solution you are a part of, or a DELETE request to the same endpoint to unshare them.

Shared pre-verified business phone numbers can be surfaced by partners of a solution in their implementation of Embedded Signup.

If you are sharing numbers with multiple business partners, we recommend that you advise your partners to get a list of shared pre-verified numbers before surfacing them in Embedded Signup. This reduces the likelihood of a partner attempting to surface a number that has already been claimed (claimed numbers do not appear in the flow, but the partner might not know this and wonder why it’s not appearing).

POST /<BUSINESS_ID>/share_preverified_numbers
  ?partner_business_id=<PARTNER_BUSINESS_ID>
  &preverified_id=<PREVERIFIED_ID>

Unsharing Request Syntax

DELETE /<BUSINESS_ID>/share_preverified_numbers
  ?partner_business_id=<PARTNER_BUSINESS_ID>
  &preverified_id=<PREVERIFIED_ID>

Response

Upon success, the API will return true. If sharing, notify your business partner of the newly shared pre-verified number and provide them with the number’s ID. If unsharing, the number will no longer appear in the partner’s implementation of Embedded Signup.

{
  "success": <SUCCESS>
}

curl -X POST 'https://graph.facebook.com/v17.0/share_preverified_numbers?partner_business_id=506914307656634&preverified_id=1706193509821738' \
-H 'Authorization: Bearer EAAH0...'

Example Unsharing Request

curl -X DELETE 'https://graph.facebook.com/v17.0/share_preverified_numbers?partner_business_id=506914307656634&preverified_id=1706193509821738' \
-H 'Authorization: Bearer EAAH0...'

Example Response

{
  "success": true
}

Registering pre-verified numbers programmatically

If you have customized Embedded Signup to bypass the phone number addition screen, you can register pre-verified business phone numbers on an onboarded business customer’s WhatsApp Business Account programmatically. To do this, first complete all of the steps to create a pre-verified number, then use the pre-verified number ID to complete Step 1 and Step 4 in the Register Phone Numbers document.

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Pre-verified phone numbers

Requirements

Limitations

Creating pre-verified numbers

Step 1: Create a pre-verified business phone number

Request Syntax

Response

Sample Request

Sample Response

Step 2: Request a verification code

Request Syntax

Response

One-Time-Password SMS Syntax

One-Time-Password Voice Message Syntax

Sample Request

Sample Response

Sample One-Time-Password SMS Message

Sample One-Time-Password Voice Message

Step 3: Verify the number

Request Syntax

Response

Sample Request

Sample Response

Displaying pre-verified numbers in Embedded Signup

Determining if a number has been claimed through Embedded Signup

Getting and registering claimed phone numbers

Getting claimed numbers via session logging

Getting claimed numbers via API

Get pre-verified business phone numbers

Sharing and unsharing pre-verified numbers

Sharing Request Syntax

Unsharing Request Syntax

Response

Example Sharing Request

Example Unsharing Request

Example Response

Registering pre-verified numbers programmatically