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    Enable Tokenization
    This section describes the required and optional configuration settings for Tokenization
            for the plugin. 
To enable Tokenization follow these steps: 
- In OpenCart Back office, navigate toExtensions > Extensions > Payments >.Visa Acceptance SolutionsUnified Checkout
 - Click theEditicon.
 - In the EditVisa Acceptance Solutionspane, from the drop down list or text box, select or enter the setting you want.
 - Click theSaveicon.
 - Repeat for each required setting and each optional setting you want to set.
 
Required Settings
            The following settings are required:
- Tokenization
 - Setting enables customers to save cards for future use while making a card payment.
 
Optional Settings
            The following settings are optional for enabling Tokenization for the plugin:
- Network Token Updates
 - Enable this setting to subscribe to Network Token life cycle updates.
 - Limit Saved Card Rate
 - With this setting enabled, a limit is set to save only a specified number of cards in the My Account section in Front Office. There are two settings:
- Saved Card Limit Count: Number of cards that can be saved in a certain period of time.
 - Saved Card Limit Time Frame: Number of hours that saved card attempts are counted.
 
 - Enforce SCA for Saving Card
 - If enabled, card holders are3-D Securechallenged when saving a card.