PayPal logo
  • Sign Up
  • PayPal for You

    Shop and Pay

    • Buy Now, Pay Later
    • Paying with PayPal

    Send and Receive Money

    • Send Money
    • Request Money
    • Start Selling
    • Donate and Raise Funds

    Manage your money

    • Add Payment Method
    • Security and safety
    • Get the App app
      Get the App
    • How PayPal works
      How PayPal Works
    • Money Hub
      Money Hub
  • PayPal Open

    The platform for all business

    Business Types

    • Enterprises
    • Small Businesses
    • Solopreneurs
    • Developers

    Accept Payments

    • Online Checkout
    • Instalment Payments
    • POS System
    • Invoicing
    • Payment Links
    • Enterprise Payments

    Risk & Operations

    • Make Payments
    • Risk Management
    • Fraud Protection
    • Reporting Tools
    • Shipping

    Financial Services

    • PayPal Working Capital
    • Business Debit Card
    • Get Started
      Get Started
    • Fees
      Fees
    • Payment Methods
    • 3rd Party Integrations
    • Business Resource Center
  • Developer
  • Help
Log InSign Up

Help Center - Technical Support

How can we help you?

  • Home
  • APIs
  • Shopping Carts
  • Errors
  • Getting Started
  • Reports
  • Products
  • SDKs

Common Questions

  • Why did customers get the error "PayPal cannot process your payment. Please contact the merchant to solve this issue"?
  • What are the Internet Protocol (IP) addresses for PayPal server endpoints?
  • Why did I get API error code 10002?
  • How do I convert my PEM format certificate to PKCS12?
  • How do I accept credit cards using guest checkout with PayPal Express Checkout?
  • What is PayPal Invoicing and how does it work?
  • Where can I find test credit card numbers?

More ways we can help

Developer Resources

Access documentation, APIs and more

Braintree Support

Find technical information on processing with Braintree

Site Status

Get status on scheduled maintenance and more

Personal Help

Get help with using any of our PayPal products

Business Help

Get help with using any of our PayPal products

Contact Us

Contact customer service

Message Center

Send, receive, and view your PayPal messages

  • Help
  • Contact
  • Fees
  • Security
  • Apps
  • Shop
  • Code of conduct
  • EU Digital Services Act
  • Français

  • About
  • Newsroom
  • Jobs
  • Developers

  • © 1999–2025
  • Accessibility
  • Privacy
  • Cookies
  • Legal
  • Complaints