# How to Add a Payment Method for WhatsApp Business API

To send business-initiated messages via WhatsApp using Mercuri CX, you must ensure that a valid payment method is added to your **Meta (Facebook) Business Account**.

Follow the steps below to add or update your payment method.

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####  Step 1: Go to Meta Business Settings

1. Visit <https://business.facebook.com>
2. Log in using the same Facebook account that owns the WhatsApp Business account.
3. From the left-hand menu, click on **“Business Settings”**.

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#### &#x20;Step 2: Select Your WhatsApp Business Account

1. In Business Settings, scroll down and click on **“WhatsApp Accounts”** (under “Accounts”).
2. Select the WhatsApp Business Account you want to set up payments for.

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#### Step 3: Go to Payment Settings

1. Once your WhatsApp Business Account is selected, go to the **“Settings”** tab at the top.
2. Click on **“Payment Settings”** or scroll to find the **Billing section**.
3. You’ll be redirected to the **Meta Billing Center**.

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#### Step 4: Add a Payment Method

1. In the Meta Billing Center, click **“Add Payment Method.”**
2. Choose your preferred payment method&#x20;
3. Fill in your payment details and click **Save**.

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#### Step 5: Confirm and Link to WhatsApp Messaging

Once the payment method is added:

* Meta will automatically link this payment method to your WhatsApp Business Account.
* You can now start sending **business-initiated messages** via  **Mercuri CX**.