You can use Payment Integration customization to do the following:

• Customize payment method names, descriptions, icons, and the text of the last button of Checkout (for example, Complete purchase) directly in the Merchant Center.
• Localize customizations to support multiple languages.
• Use predefined payment methods with default settings, or override the defaults with your own custom texts and icons.

For custom Payment Integrations added through your Organization Connector, you must use the Merchant Center for customization.

If you previously customized your payment methods by using the SDK, then you should migrate your settings to the Checkout application in the Merchant Center and directly manage the payment methods there.