Upgrade Guide
Unlock the latest features from PayPal and get ready for innovative features coming to PayPal Complete Payments this summer. Share these instructions with your Developer.
If you need assistance, please call us at (888) 429-3035 to speak with a Payments Specialist who will be able to guide you through the upgrade process.
Follow the steps below to determine which integration you are currently using.
To begin, look through your client-side code on your checkout page, and match it to one of the code samples provided below.
1<script src="https://www.paypalobjects.com/api/checkout.js"></script>2<div id="paypal-button"></div>3<script>4...
Express Checkout minimizes the number of steps customers must complete when they check out. It's designed for merchants who don't have an Internet Merchant Account for processing credit and debit card payments.
If you’re still using the legacy Express Checkout integration (the NVP/SOAP API with checkout.js), we strongly recommend upgrading to PayPal’s modern Standard Checkout (Orders V2 REST API + JavaScript SDK v5). Your existing Express Checkout setup will continue to process payments, but it’s no longer under active development— new features, payment methods, and performance enhancements won’t be back-ported. To unlock Smart Payment Buttons, Pay Later options, enhanced fraud protection, and future improvements, please follow our PayPal Checkout Integration Guide.
Search for the URLs below in your server-side code to determine which server-side integration you are currently using, and review our recommendations for moving forward.
| URLs used in your server-side code | Integration |
| api-3t.sandbox.paypal.com/nvp api-3t.paypal.com/nvp |
NVP Upgrade to PayPal Checkout or Expanded Checkout |
| api.sandbox.paypal.com/2.0 api.paypal.com/2.0 |
SOAP Upgrade to PayPal Checkout or Expanded Checkout |
PayPal offers three modern options for integrating payments. Fees may differ based on payment method chosen by the customer. Learn more about our transaction fees.
| Feature | No Code | PayPal Checkout | Expanded Checkout |
|---|---|---|---|
| No coding knowledge required | |||
| Accept PayPal, Venmo and Pay Later Offers | |||
| Accept local payment methods | |||
| One-time sale transactions | |||
| Authorize and capture transactions | |||
| Voids and refunds | |||
| Advanced card processing (3DS, L2/L3) | |||
| Custom user experience | |||
| Customizable fraud protection tools | |||
| Built for large enterprises and tech startups | |||
| Accept Apple Pay and Google Pay | |||
| Flexible data sharing | |||
| Guest Checkout with Fastlane |
To complete the upgrade process, you can follow our detailed setup guide for your chosen integration: