In this recipe, we unset the required CVV field at membership checkout. This field is not always required by the merchant account. We do recommend this field as it can help to reduce fraud on your site (and thus chargebacks, etc), but for some businesses you may want to remove or make the CVV optional.
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The Code Recipe
Adding the Recipe to Your Website
You can add this recipe to your site by creating a custom plugin or using the Code Snippets plugin available for free in the WordPress repository. Read this companion article for step-by-step directions on either method.