Integrate PayPal in 2025

Founded in 1998, PayPal provides a secure way to conduct transactions over the internet without sharing sensitive financial information, such as credit card numbers.

Standard vs Advanced Checkout Integration

Over the years, PayPal has evolved beyond just offering a Checkout Button for digital wallet transactions. Today, it provides various payment options, including local payment methods (often referred to as alternative payment methods) like Giropay and iDEAL:

In addition, PayPal supports direct credit and debit card transactions (known as Advanced Credit/Debit Card or ACDC), as well as Apple Pay and Google Pay:

You can review both Standard and Advanced integration options to determine what best fits your business needs.

Save Payment Method

Beyond one-time checkouts, which typically require buyers to log in to PayPal and navigate through the PayPal checkout flow, merchants can enable Reference Transactions to integrate the Save Payment Methods feature (also known as Vaulting):

By utilizing the PayPal JavaScript SDK, you can implement the PayPal button with the ability to save payment methods during purchase or for future use. This ensures a smoother checkout experience for members, without the need to store sensitive payment data on the merchant’s side.

PayPal Pay Later

If you are a merchant in the United States, United Kingdom, Germany, France, Italy, Spain, or Australia, consider promoting the PayPal Buy Now, Pay Later option prominently on your product pages. This messaging informs buyers that they can make purchases now and pay later when checking out with PayPal. Such options can improve conversion rates, attract new customers, and increase order values, as buyers are aware of the financing options available to them. Additionally, buyers can track their payment history and outstanding payments within their PayPal accounts.

Fastlane

PayPal partners with various shopping cart and e-commerce platforms, some of which have integrated Fastlane:

https://developer.paypal.com/studio/checkout/fastlane

Fastlane is a blend of PayPal solutions, utilizing drop-in components that combine ACDC and vaulting. This simplifies the storage of payment methods using a combination of email, mobile, and One-Time Password (OTP). When a buyer checks out on a Fastlane-integrated website and consents to store their payment information, they can use their stored payment method on other participating websites by entering their email and receiving an OTP, without the need for memorizing password for login.

No Code Solution

For small to medium-sized businesses (SMBs) without developers, PayPal offers a no-code solution to collect payments. This option is suitable for those with fewer transactions:

https://developer.paypal.com/studio/checkout/no-code

You can generate a payment link, allowing the buyer to enter the amount, and then wait for payment notification to confirm the sale.

PayPal continues to offer Invoicing and Subscription services. While these features aren’t new, they remain essential tools for small and medium-sized businesses (SMBs) to collect payments conveniently:

To conclude,

Now you should have a broader understanding of what PayPal offers. To experience these features, you need to integrate with PayPal’s latest solutions. Many legacy integrations, such as Web Payment Solutions (WPS), Payment Pro, PayPal Pro, and NVP/SOAP, are still prevalent across the internet. If you use shopping carts like WooCommerce or OpenCart, ensure you are utilizing modern payment plugins. Various e-commerce platforms are continually upgrading their PayPal integrations to provide enhanced features for merchants.

Checkout PayPal Developer portal for more detail: https://developer.paypal.com/ for deeper understanding of PayPal solutions

Common PayPal Integration Pitfalls: How to Avoid Costly Errors

In my experience assisting various merchants with PayPal integration, I’ve learned valuable lessons about common mistakes that can lead to costly errors. In this blog, I’ll highlight these pitfalls and provide guidance on how to avoid them to ensure a smooth integration process.

Common Pitfalls or Misunderstandings

  1. Avoid Using Legacy, Deprecated PayPal Solutions
    • PayPal has been around for a long time, and while it offers various solutions, many are legacy or deprecated (e.g., Xoom, Web Payment Standard, PayPal Payment Pro, NVP-SOAP). Sticking to these can lead to issues with functionality and support.
  2. Misconception About Member Checkout Only
    • Many believe PayPal only supports member checkouts. However, PayPal allows guest checkouts without requiring users to log in, making it easier for customers to complete their purchases.
  3. Lack of Technical Support for Legacy Solutions
    • Deprecated solutions often come with limited technical support. PayPal System Upgrades could lead to regressions happens on legacy and deprecated solutions that require longer troubleshooting times. Nowadays, PayPal promotes REST API and JS SDK, which offer enhanced capabilities, including support for other payment service providers.

Deep Dive into Integration

  1. REST API as the Promoted Integration Approach
    • While REST API is the recommended integration method, PayPal no longer provides server SDKs. Merchants should use their preferred programming languages to make REST API calls effectively.
  2. Understanding PayPal Checkout Steps
    • The PayPal Checkout process involves various steps, some requiring payer action and others requiring merchant action. A PayPal Checkout is initiated as an Order Request via the Order V2 API. It’s crucial to track the order’s status through attributes like purchase_units[0].payments to ensure payments are completed properly.
  3. Order Capture Requirement
    • After creating a PayPal Order and being approved by the payer, merchants must perform the payment capture, either through a JS SDK or an API-only approach. PayPal doesn’t auto-capture. And an approved orders will expire in 6 hours if left idle.
  4. Immediate Order Capture Response
    • Merchants can receive an immediate response from the Order Capture API, rather than relying on Instant Payment Notification (IPN) or webhook, which may have delays. This approach optimizes the checkout experience by reducing wait times for payment status.
  5. Disable Non-Instant Payment Methods
    • PayPal supports non-instant payment methods like bank deposits (eChecks), which can delay fulfillment. Merchants can avoid this by adjusting account settings to only accept immediate payment methods, ensuring quicker transaction processing.
    • Merchant can disable this from Account Settings > Website Payment preference. Or specify the checkout experience to only accept IMMEDAITE PAYMENT METHOD: payment_source.paypal.experience_context. payment_method_preference = ‘IMMEDIATE_PAYMENT_REQUIRED’.
  6. Managing Unsuccessful Payments
    • Payment failures can occur for various reasons, including declines by PayPal’s risk engine or issues with the buyer’s card. Merchants need to handle declined payments effectively and communicate clearly with customers about their payment status.
  7. Addressing Fraud Attempts
    • Fraudsters may attempt to exploit the checkout process by initiating incomplete transactions. Merchants should focus on capturing amounts rather than just conversion rates (CR) to assess the effectiveness of their checkout processes.

Conclusion

By addressing these common pitfalls during PayPal integration, merchants can avoid significant issues and leverage PayPal’s features to benefit their business. Proper handling of these aspects not only saves trouble but also enhances the overall payment experience for customers.

The Evolution of PayPal Integration: From Legacy to Modern Solutions

PayPal has a long and storied history in the digital payments landscape, having evolved significantly since its inception. As the needs of merchants and consumers have changed, so too have the integration patterns that PayPal offers. This blog will explore the journey of PayPal’s integration methods, the challenges of deprecated solutions, and the benefits of adopting the latest REST API and JavaScript SDK.

A Long History of Payment Integration

Throughout its history, PayPal has introduced various integration methods to accommodate the evolving digital payment ecosystem. Some notable patterns include:

Payment Pro: A powerful tool for merchants seeking advanced payment processing capabilities. Basically to provide direct credit card payment offer.
Web Payment Service (WPS): Aimed at simplifying online payments for small businesses. Allow merchants build simple web payment form for accepting Credit Card Payment.
NVP/SOAP APIs: Earlier API solutions that provided merchants with a way to integrate PayPal to offer Express Checkout.

However, many of these methods have been deprecated. The primary reasons include the inability to support modern web payment standards, such as 3D Secure (3DS), which has become a necessity for secure online transactions.

The Challenges of Deprecated Methods

The latest integration approach from PayPal is the REST API, which works in conjunction with the client-side JavaScript SDK. This modern solution has transformed PayPal’s offerings, allowing merchants to go beyond simply adding a checkout button to their websites.

With REST APIs, PayPal is no longer just about wallet payments. The platform now offers extensibility and supports a variety of alternative payment methods, including:

  • Apple Pay
  • Google Pay
  • Direct credit card integration

This flexibility caters to the diverse needs of merchants and their customers, enhancing the overall payment experience.

Encouraging Modern Integration

As of Fall 2023, PayPal has begun to actively encourage merchants to adopt these modern integration methodologies. Continuing to use legacy, deprecated methods not only limits functionality but may also lead to a lack of technical support. As PayPal evolves, it is essential for businesses to stay current with integration trends to ensure their payment systems remain robust and secure.

Simplifying the Transition

Switching to modern REST APIs on the server side and the JavaScript SDK on the client side is a straightforward process. It’s not “rocket science.” Developers can make RESTful API calls using their preferred tools, free from the constraints of SDK updates. This flexibility allows for a more tailored integration experience that meets specific business needs.

For more information on PayPal products and integration options, visit PayPal Developer. To dive deeper into REST API integration, check out the PayPal REST API documentation.

By embracing these modern solutions, merchants can enhance their payment capabilities, improve customer experiences, and ensure they are well-equipped for the future of digital payments.

Embracing Modern Integration

As we look to the future, it’s crucial for merchants’ developer to start familiarizing themselves with the JavaScript SDK and REST API. Key steps include:

  • Integrating checkout with the Order v2 API and JS SDK.
  • Performing payment refunds using the Payment v2 API.
  • Integrating Webhooks instead of relying on IPN for real-time notifications.
  • Checking account transactions with the Transaction Search API.

By adopting these modern integration methods, merchants not only ensure that PayPal can continue to provide technical support but also enhance their service offerings. Leveraging the latest integrations allows for a more seamless and efficient payment experience, ultimately benefiting both businesses and their customers.

Now is the time to embrace these advancements and take full advantage of what PayPal has to offer!