How to get PayPal to redirect users back to your website after successful payment
With Auto Return for Website Payments, your buyers are automatically redirected to your website after payment completion. Here’re the steps to turn Auto Return on:
Step 1: Login your business PayPal account at https://www.paypal.com/.
Note: You must use PayPal Business account to log in since Personal accounts do not have this option.
Step 2: Click on the Profile subtab under My Account.
Step 3: Under the Selling online section, click the Update link to the right of the Website preferences. The Website Preferences page appears.
Step 4: Under Auto Return for Website Payments, select On radio button to enable Auto Return.
Step 5: Enter the URL that will be used to redirect your buyers after successful payments in the Return URL field.
Note:This URL is not important because URL Return has already been set in the code of the theme. You can enter http://yourdomain.com into Return URL instead.
Step 6: Scroll to the bottom of the page, click the Save button to complete your changes.
Step 7: Finally, you use this PayPal account to set as PayPal email in your site ( Engine Settings > Settings > Payment > Payment Gateways > PayPal).