Hide the coupon box on the checkout page if the coupon is already applied in WooCommerce

[sebastian-moran]

Hide the coupon box on the checkout page if the coupon is already applied in WooCommerce on your child site.

Snippet Type

Execute on Child Sites

Snippet

add_filter( 'woocommerce_coupons_enabled', 'woocommerce_coupons_enabled_checkout' );

function woocommerce_coupons_enabled_checkout( $coupons_enabled ) {
    global $woocommerce;
    if ( ! empty( $woocommerce->cart->applied_coupons ) ) {
        return false;
    }
    return $coupons_enabled;
}