# gateway.identity_verification.contactless_fallback

> For the complete machine-readable documentation index, see [llms.txt](https://apidocs.chargebee.com/llms.txt).


**gateway**

The contactless transaction could not be completed and requires a fallback to another method. This happens when the transaction amount exceeds contactless limits, the card issuer requires additional authentication, or there are technical issues with the contactless reader.

## Recommended Customer Message

The contactless payment was unsuccessful, and we could not complete the transaction. Please try again using a different card entry method, such as inserting the card or entering your PIN. If the issue persists, contact your bank or card issuer for assistance.

## Root Cause[](#root-cause)

-   **Contactless limit exceeded:** The transaction amount exceeded the allowed limit for contactless payments, triggering a fallback to another method.
-   **Card issuer security policy:** The issuer requires additional authentication for certain transactions, disabling contactless for this attempt.
-   **Technical issues with contactless reader:** The payment terminal failed to properly read the card using contactless mode.
-   **Fallback not completed:** The customer did not proceed with the fallback method (chip insert, PIN entry, or swipe).

## Troubleshooting and Solutions[](#troubleshooting-and-solutions)

-   Recommend using a different payment method if the issue persists.
-   Advise the customer to retry using an alternative card entry method, such as inserting the card and entering their PIN or swiping the card.
-   Ensure the payment terminal is functioning correctly and supports fallback handling.
-   If this issue occurs frequently, consider reviewing terminal settings or contacting the payment gateway for troubleshooting.