Root Cause

• Unsupported currency: The card issuer does not support transactions in the specified currency.
• Card product limitations: Some cards, especially region-locked or local currency cards, cannot process multi-currency transactions.
• Gateway configuration restrictions: Your payment gateway does not support currency conversions for the attempted card type.
• Regulatory restrictions: The issuing bank prevents currency conversions based on local financial regulations.

Troubleshooting and Solutions

• Ask the customer to retry the transaction using a card that supports international or multi-currency transactions.
• Recommend the customer contact the card issuer to confirm if currency support can be enabled for the card.
• Verify that the merchant account, payment gateway, and Chargebee are configured to support the required transaction currency.
• Clearly display supported currencies in the product or plan page to help customers choose the appropriate payment method.
• Offer alternative payment methods that support multi-currency transactions.