WhatsApp API Error: “Message failed to send because there were one or more errors related to your payment method”

When using the WhatsApp Business API, you might encounter the error:

"Message failed to send because there were one or more errors related to your payment method."

This message indicates that WhatsApp (via Meta Business Manager) could not process your outgoing message due to issues with your account’s billing setup.

Why This Error Happens

There are three main reasons why this error may appear:

1. No Payment Method Added

If your Meta Business Manager account does not have a payment method (such as a credit card or debit card) linked, the WhatsApp API will not be able to deduct messaging charges.

2. Payment Method Not Set as Default

Even if you’ve added a card, it must be set as the default payment method in your Business Manager settings. Otherwise, the API will not know which card to use for charges.

3. Outstanding Balance (Account in Debt)

If your account has unpaid charges from previous message sends, Meta will block new outgoing messages until the outstanding balance is cleared.

How to Fix the Problem
Here’s a step-by-step guide to resolve the issue:

1. Add a Payment Method

• Log in to your Meta Business Manager account.

• Navigate to Business Settings → Payments.

• Click Add Payment Method and enter your card details.

2. Set the Payment Method as Default

• In the Payments section, find your preferred card.

• Click Set as Default to ensure it’s automatically used for charges.

3. Clear Any Outstanding Balance

• If your account is in debt, go to Billing in Business Manager.

• Review your invoices and pay the outstanding amount.

• Once payment is processed, message sending will be restored.

Best Practices to Avoid This Error

• Enable auto-recharge or recurring billing to prevent interruptions.

• Monitor your billing section regularly for pending charges.

• Keep a backup payment method on file in case your primary card fails.
  
  

Conclusion:
This error is entirely related to billing issues on your Meta Business Manager account. By ensuring you have a valid default payment method, keeping your account balance clear, and proactively managing your payment settings, you can avoid disruptions to your WhatsApp API message delivery.