MAGETWO-71706: PayPal Express Checkout payment method doesn't appear after enabling PayPal Payments Advanced on website level

Author: Joan He

app/code/Magento/Paypal/Model/AbstractConfig.php

@@ -61,6 +61,11 @@ abstract class AbstractConfig implements ConfigInterface
      */
     private static $bnCode = 'Magento_Cart_%s';
 
+    /**
+     * @var \Magento\Framework\App\Config\ScopeConfigInterface
+     */
+    protected $_scopeConfig;
+
     /**
      * @param \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
      */

app/code/Magento/Paypal/view/adminhtml/web/js/rules.js

@@ -117,6 +117,7 @@ define([
      * @param {String} enabler
      */
     disableSolution = function (solution, enabler) {
+        setSolutionUsedefaultEnabled(solution, enabler);
         setSolutionMarkEnabled(solution, enabler, false);
         setSolutionSelectEnabled(solution, enabler, false);
         setSolutionPropEnabled(solution, enabler, false);
@@ -129,6 +130,7 @@ define([
      * @param {String} enabler
      */
     enableSolution = function (solution, enabler) {
+        setSolutionUsedefaultEnabled(solution, enabler);
         setSolutionPropEnabled(solution, enabler);
         setSolutionSelectEnabled(solution, enabler);
         setSolutionMarkEnabled(solution, enabler);