Follow the detailed instructions for creating a Facebook Business Suite account.
If you already have an active company, there is no need to create another one.

1. Go to the Meta* for Developers website.

2. Click «Get started».

3. Enter your email address.

4. Agree to receive updates and click «Send email».

5. Enter the verification code sent to your email and click «Continue».

6. Select «Developer».

7. Click «Complete registration».

1. Go to Meta* for Developers.

2. Select «My Apps».

3. Click «Create App».

4. Enter the app name and email, then click «Next».
   

5. Under «Use cases», select «Communicate with customers on WhatsApp» and click «Next».
   

6. Select the business portfolio and click «Next».

7. Review the information and click «Go to dashboard».

1. Open the “Use Case” section, then “Customize”.
   

2. In the left menu, open «Configuration».
   In «Callback URL», enter: https://webhook.chatapp.online/v1/webhooks/caWhatsApp
   In «Verify token», enter: v8WxwE
   

3. Refresh the page and enable the «messages» option.
   

1. In «Permissions and features», add the business_management permission.
   

2. Go to «API Setup» and click «Add phone number».
   

3. Enter Display Name, Time Zone, Category, and Company Description.

4. Enter the phone number — an SMS verification code will be sent.

1. Go to «API Settings».

2. Click «Add payment method».
   

3. Click «Payment settings».
   

4. Click  «Add payment method».
   

5. Select country, currency, and time zone.

6. Enter your card details and click «Save».

In some cases, the number may enter «Pending» status. To activate it:

1. Ensure that a payment method has been added.
2. Go to «API Settings».
3. Click «Generate access token».
   
4. Complete the steps and select the connected account.
5. Send a test message to a personal phone number with WhatsApp installed.

Even if a test message error appears, the number will still be activated.

1. Open the “Use Case” section, then “Customize”.
   

2. In the left menu, open «Configuration».
   In «Callback URL», enter: https://webhook.chatapp.online/v1/webhooks/caWhatsApp
   In «Verify token», enter: v8WxwE
   

3. Refresh the page and enable the «messages» option.
   

1. In «Permissions and features», add the business_management permission.
   

2. Go to «API Setup» and click «Add phone number».
   

3. Enter Display Name, Time Zone, Category, and Company Description.

4. Enter the phone number — an SMS verification code will be sent.

1. Go to «API Settings».

2. Click «Add payment method».
   

3. Click «Payment settings».
   

4. Click  «Add payment method».
   

5. Select country, currency, and time zone.

6. Enter your card details and click «Save».

In some cases, the number may enter «Pending» status. To activate it:

1. Ensure that a payment method has been added.
2. Go to «API Settings».
3. Click «Generate access token».
   
4. Complete the steps and select the connected account.
5. Send a test message to a personal phone number with WhatsApp installed.

Even if a test message error appears, the number will still be activated.

POST https://graph.facebook.com/v20.0/NUMBER_ID/register

Body:
{
“messaging_product”: “whatsapp”,
“pin”: “OTP”
}

Replace:

• NUMBER_ID — WhatsApp number ID;
  

• Authorization Token — token from Step 8;

• OTP — the 6-digit verification code.

If the response returns true, activation is successful.

POST https://graph.facebook.com/v22.0/WABA_ID/subscribed_apps

Replace:

• WABA_ID — WhatsApp Business Account ID;
  

• Authorization Token — token from Step 8.

If the response returns true, incoming messages are activated.

1. Open «System users».

2. Enter the system user name, select «Administrator», click «Create system user».
   

3. Grant the system user full control over the application created in Step 3.
   
   

1. In «System users», select the system user and click «Generate token».
   

2. Select the application.

3. Set token expiration to «Never».

4. Select the required permissions:

   business_management
   whatsapp_business_management
   whatsapp_business_messaging

   

5. Copy and securely store the generated token.

Procedure:

• Open the previously created application.

• Add a new phone number.

• Add a payment method.

• Activate the number if its status is «Under review».

• Authorize the number in the corresponding ChatApp line.

If the System User Token generated during the initial setup is lost:

• Contact ChatApp technical support and provide the line ID associated with the first WhatsApp Cloud API number.

Without a valid token, connecting an additional number is not possible.

Step 1. In your personal account, open «Lines» and select the line with the WhatsApp Cloud API channel.

Step 2. In line settings, click «Link» next to WhatsApp Cloud API and select «Enter data manually».

Step 3. Enter:

• WABA_ID — WhatsApp Business Account ID;
  

• NUMBER_ID — WhatsApp number ID;
  

• Authorization Token — token obtained in Step 8.