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Phone Numbers ​

This section covers adding, verifying, and registering phone numbers for WhatsApp Business API usage.

Overview

Add Phone Numbers ​

1. Open WhatsApp Manager ​

Go to Business Settings > Accounts > WhatsApp Accounts.

2. Add Phone Number ​

  • Select your WhatsApp account
  • Click "Add Phone Number"
  • Enter the display name for this number (what users will see in WhatsApp chats)
  • Enter your actual phone number

Add Phone Number

Verify Phone Number ​

1. Open API Setup ​

Go to App Dashboard > WhatsApp > Getting Started > API Setup.

2. Select the Phone Number ​

Choose the number to verify.

3. Choose Verification Method ​

Verification

  • Click "Verify"
  • Select whether to receive the code via SMS or phone call
  • Enter the received code to activate the number

4. Copy Phone Number ID ​

  • This ID appears under the number in API Setup
  • Save it for future API interactions

Register Phone Number ​

To fully register your phone number with the WhatsApp Business API, an API call is required. This ensures the number is correctly linked and usable via the API. You will need:

  • The phone number ID (from the previous step)
  • The permanent access token (from earlier)

Steps ​

1. Install Postman ​

Download and install Postman to easily make the API request.

2. Create a New API Request in Postman ​

  • Method: POST
  • URL: https://graph.facebook.com/v18.0/<phone-number-id>/register
  • Replace <phone-number-id> with your actual ID

3. Add Header ​

  • Key: Authorization
  • Value: Bearer <permanent-access-token>
  • Replace <permanent-access-token> with your actual token

4. Set Request Body ​

json
{
  "messaging_product": "whatsapp",
  "pin": 123456
}

Choose raw JSON format. Replace 123456 with any 6-digit PIN of your choice. It will not be used again.

5. Send Request ​

  • Click "Send"
  • If successful, you'll receive a confirmation response

Send Request

What's Next? ​

After successfully adding, verifying, and registering your phone numbers, proceed to: