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    Enforcing Strong Customer Authentication
    Select the 
Enforce Strong Customer Authentication
 setting to prompt a
                    3-D Secure
 challenge when a customer saves their credit card
                information. The customer is 3-D Secure
 challenged when a transaction
                is declined as reported by response code 478
 (Strong Customer
                Authentication required). After the transaction is declined, another request is sent
                for the same order. The Enforce Strong Customer Authentication setting is only
                    available when the Payer Authentication/
3-D Secure
 (General Plugin
                    setting) and Tokenization (Fraud Management Plugin setting) are enabled. See
                        Enable 3-D Secure (Payer Auth) and Enable Tokenization for information about enabling these
                    settings.Follow these steps to enable Enforce Strong Customer Authentication:
            
- OpenOpenCartBack Office and selectExtensions>Extensions>Payments>.Visa Acceptance SolutionsUnified Checkout
 - Select theEditicon.
 - From the drop down menu next to Enforce SCA for Saving Card, selectEnable.
 - Click theSaveicon.