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  • This step happens on Meta’s side, once per Business Portfolio — not inside ChatSyncs.
  • Meta bills you directly for WhatsApp conversations, not ChatSyncs. See What WhatsApp API Pricing Really Means for the plain-English breakdown, or Conversation Categories & Pricing for the full API-level rate table.
  • Meta requires a payment method on file before it lets messages send past the free tier.

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Set it up

1

Open your Business Portfolio's settings

In Meta Business Suite, click your business portfolio name in the top-left switcher, then click the gear icon next to it to open Settings.
Meta Business Suite business portfolio switcher open, showing the Bengalururent business portfolio with its settings gear icon highlighted
2

Open your WhatsApp account's payment settings

Under Accounts → WhatsApp accounts, select the WhatsApp Business account you want to bill. Its current Payment method (if any) shows on the right. Click Payment settings.
Meta Business Suite Settings, WhatsApp accounts list with one account selected showing its Account status, Payment method, and a highlighted Payment settings button
3

Add a payment method

This opens Billing & payments. Under Payment methods, click Add payment method. You can have more than one card on file — Meta uses whichever is marked Default.
Meta Business Suite Billing and payments page, Payment methods section showing one existing Visa card and a highlighted Add payment method button, with a Payment activity table below
4

Set your location and currency

In the Add payment information dialog, choose the Country/region, Currency, and timezone, then click Next.
Add payment information dialog with Country/region set to India, Currency set to Indian Rupee, timezone set to Kolkata, and a Next button
Location and currency cannot be changed once set. Double-check both before clicking Next — changing them later means removing the payment method and starting over.
5

Enter your card details

On the Debit or credit card screen, fill in the Name on card, Card number, expiry (MM/YY), and CVV, check the authorization box, then click Save.
Debit or credit card dialog with Name on card, Card number, MM/YY, and CVV fields, an authorization checkbox, and a Save button
Some cards get an error on the first attempt — this is usually the card issuer declining, not a problem with the details entered. Try a different card if one gets rejected; a second card often goes through where the first didn’t.
Expected result: The account’s Payment methods list shows your new card, and it’s ready to be billed for conversations once the free monthly conversations run out.
This same Billing & payments page also has a Payment activity tab, showing every charge against this payment method — useful for checking a charge without leaving Meta Business Suite.
Right after saving a payment method, Meta sometimes shows a banner asking for missing business information (Legal Business Name, Address, Phone Number, Website). Click it and fill in whatever’s requested — Meta won’t process billing until that information is complete.

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What’s next

With a payment method on file, your number can keep sending messages past the free tier without interruption. See Conversation Categories & Pricing for what actually gets billed, or head back to How to Connect Your Number to ChatSyncs if you haven’t finished that yet.