Adding a payment method to your WhatsApp API setup on Meta is an essential step for businesses looking to leverage WhatsApp for transactions and customer interactions. 

This process involves several steps, from setting up your business account to configuring payment methods. 

Before you can add a payment method, you need to verify your business in the Meta Business Manager. This process involves providing business details and documents that prove your business's legitimacy.

Here's a detailed guide on how to add a payment method for the WhatsApp API in Meta Business Manager.

How to Add Payment Method?

After your business verification is complete, you can add a payment method to your account.

 Here's how:

  1. Open Meta Business Manager.
  2. From the bar on the left, under the dropdown select the business account you want to add the payment for.

  3. Go to Business Setting and click on Billings and Payments.

  4. Now navigate to Accounts and choose WhatsApp Business        Accounts.

   5. Now for the account which you want to add the payment             method for, select the Add Payment Method.

   6. Finally add your card details and click Save.