Root Cause

• Payment method not enabled: The selected payment method has not been enabled in the merchant’s payment gateway configuration.
• Unsupported payment method by gateway: The payment gateway does not support the selected payment method for the merchant’s region or account type.
• Incomplete payment method setup: The payment method integration is incomplete or improperly configured in the merchant’s system.
• Account limitations or restrictions: The merchant’s account is restricted from using certain payment methods due to compliance or business policies.

Troubleshooting and Solutions

• Verify and update the merchant account settings to enable the required payment method.
• Contact the payment gateway support team to confirm if the selected payment method is supported and available.
• Recommend offering alternative payment methods to customers if the preferred option is not supported.
• Clearly communicate supported payment methods during the checkout process to avoid customer confusion.
• Retry the transaction only after confirming that the payment method has been successfully enabled and configured.