> ## Documentation Index
> Fetch the complete documentation index at: https://docs.paysight.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Payments

> Modern card submit, express wallets, wallet styling, 3DS, supported cards, and sandbox flags.

Payments controls the payment methods and authentication options customers see in checkout. Use it to manage supported card display, express wallets, wallet button appearance, and 3D Secure behavior.

<Info>
  Find this module in **Shopify Stores** > **Edit Checkout** > **Checkout**.
</Info>

## How it works

Payment settings can affect conversion and authorization behavior. Coordinate wallet and 3D Secure changes with the client and account team before launch.

## Settings reference

<AccordionGroup>
  <Accordion title="Supported cards">
    **You will set:** Card brand toggles

    The card brand logos shown on checkout. This is a display setting; it does not change what the processor can actually authorize.
  </Accordion>

  <Accordion title="Wallet merchant ID">
    **You will set:** Text field

    The Paysight wallet merchant ID needed for Apple Pay and Google Pay.

    **Example:** A value provided by the account team, such as a merchant identifier.

    **Note:** Ask the account manager for this value before enabling express wallets.
  </Accordion>

  <Accordion title="Express wallets">
    **You will set:** Wallet toggles

    Which express wallet buttons should appear, such as Apple Pay or Google Pay.
  </Accordion>

  <Accordion title="Apple Pay button style">
    **You will set:** Button style controls

    Apple Pay button type, color style, locale, spacing, corner radius, and size.
  </Accordion>

  <Accordion title="Google Pay button style">
    **You will set:** Button style controls

    Google Pay button type, color, locale, and rendered size.
  </Accordion>

  <Accordion title="3D Secure">
    **You will set:** On/off switch

    Enables cardholder authentication when supported by the payment provider.
  </Accordion>

  <Accordion title="Cancel on 3D Secure failure">
    **You will set:** On/off switch

    Stops payment submission when 3D Secure authentication fails.
  </Accordion>

  <Accordion title="Frictionless 3D Secure only">
    **You will set:** On/off switch

    Uses frictionless authentication when available and avoids challenge flows.
  </Accordion>
</AccordionGroup>

## Examples

<Tabs>
  <Tab title="Card-only launch">
    Configure supported card display and leave express wallets off until wallet credentials are ready.
  </Tab>

  <Tab title="Wallet rollout">
    Add the wallet merchant ID, enable Apple Pay or Google Pay, and preview the button style.
  </Tab>

  <Tab title="Risk-sensitive checkout">
    Enable 3D Secure and decide whether failures should block payment attempts.
  </Tab>
</Tabs>

## Before saving

* Confirm wallet merchant ID with the account team.
* Preview wallet buttons in supported browsers and devices.
* Treat 3D Secure changes as payment behavior changes, not cosmetic edits.

## Related modules

<CardGroup cols={2}>
  <Card title="Checkout Content" icon="arrow-right" href="/guides/shopify-store-editor/checkout-content">
    Manage labels, regional behavior, reserve timer, and mobile checkout behavior.
  </Card>

  <Card title="Store Operations" icon="arrow-right" href="/guides/shopify-store-editor/store-operations">
    Control Shopify order sync and batching behavior.
  </Card>

  <Card title="Upsell Order Handling" icon="arrow-right" href="/guides/shopify-store-editor/upsell-order-handling">
    Choose how accepted upsells become Shopify orders and payment events.
  </Card>
</CardGroup>