> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/nfc-wallet-sdk-android/implement-nfc-wallet/make-payment/implement-contactless-payments/7.-configure-cdcvm-experiences/visa-cdcvm.md).

# Visa CDCVM

### Overview

This page describes CDCVM behavior for a Visa digital card.

{% hint style="info" %}
See [Configure Visa CVM priority](/nfc-wallet-sdk-android/implement-nfc-wallet/make-payment/implement-contactless-payments/7.-configure-cdcvm-experiences/visa-cdcvm/visa-cvm-priority.md) for details about CVM selection between the digital wallet application and the POS terminal. It also explains how to prioritize Online PIN.
{% endhint %}

### Low-value transaction (LVT)

For Visa, the terminal determines whether a transaction is an LVT.

It uses the `TTQ` (Terminal Transaction Qualifier) in the `Get Processing Options` (`GPO`) APDU command.

To support LVT without authentication:

* You must enable the LVT payment experience as described in [Define risk management](/nfc-wallet-sdk-android/implement-nfc-wallet/make-payment/implement-contactless-payments/7.-configure-cdcvm-experiences/define-risk-management.md).

### Transit payment without authentication

NFC Wallet SDK treats a transaction with a Visa digital card as a transit transaction when both conditions are true:

* The transaction amount is `0`.
* The terminal indicates support for `ODA for Online Authorizations` (`TTQ` byte 1 bit 1 is set).

To support transit payments at a transit gate without authentication:

* You must enable transit payment without authentication as described in [Define risk management](/nfc-wallet-sdk-android/implement-nfc-wallet/make-payment/implement-contactless-payments/7.-configure-cdcvm-experiences/define-risk-management.md).


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