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What is AVS?
Why should Card address be verified?

Address verification system is one of the widely used mechanisms to prevent fraudulent transactions. Address Verification System (AVS) is an important check that is done by the payment gateway. This service cross verifies the credit card's billing address entered by the customer with the address stored in the credit card company.

If you have enabled AVS check at your gateway's end, ensure that the same fields are enabled in Chargebee under Card Address Verification.

Enabling the Card Address Verification fields (in Chargebee) is just an additional check which ensures that all the details required by your gateway's AVS settings are present.

Even if you have not enabled the required fields here, Chargebee still passes this information to the gateway.

How to enable AVS fields in Chargebee?
 

In order to avoid validation errors returned by the gateway due to the absence of required data (such as AVS fields), it is recommended that you enable these settings.

If you use Chargebee's API or create subscriptions via the web interface, ensure that the required Card Address Verification fields are marked in Settings > Configure Chargebee > Billing LogIQ under the Card Address Verification section.
 

If you use Chargebee's hosted pages, configure the required card fields in Settings > Configure Chargebee > Checkout & Portal > Fields > Payments.

If you have any further questions regarding this, please reach out to Chargebee Support.