Welcome to the Developer Portal

Default UI Integration
- Integrating Default UI
- Migrating from PayButton to Default UI
- Managing Default UI Properties
- Summary Screen
- Incremental Authorization
- Custom Receipt Printing
- Automatic Receipt Printing
- Standalone Receipt Printing
- Sending Receipts via Email
- Customization
- Mobile UI Customization
- Release Notes

PayButton Integration
- Integration
- Stripe Transactions
- Alipay
- Summary Screen
- On-Reader Tipping
- Tip Adjust
- Loyalty and Bonus Cards
- Pre-Auth and Capture
- Refunds
- Custom Receipts
- Testing
- Going Live
- Release Notes

Custom Integration
- Installation
- Integration
- Stripe Transactions
- Signature
- Refunds
- Email & Print Receipts
- Custom Receipts
- Custom Receipts for PAX Terminals
- Preformatted Receipts
- Alipay
- On-Reader Tipping
- Tip Adjust
- Loyalty & Bonus Cards
- Pre-Auth & Capture
- Connection Keep-Alive
- Testing
- Going Live

Backend Integration
- API Endpoints and Authentication
- WebHooks
- Query Transactions
- Refunds
- Custom Receipts
- Going Live
- API Documentation

Card Readers
- Protecting Cardholder Data
- Developer Kits
- Test Cards
- Manage Card Readers
- Verifone Card Readers
  - Verifone e355
    - USB Connectivity Configuration
    - WiFI Connectivity Configuration
    - Windows Setup
    - User Guide
    - FAQ
  - Verifone P400
    - Getting Started with the Verifone P400
    - Ordering Test Equipment
    - Inspecting the Terminal
    - Connecting Verifone P400 Terminal Hardware
    - Configuring Ethernet Connectivity
    - Configuring USB Connectivity
    - Finding the Network Address Assigned to the Terminal
    - Configuring the Static IP Address
    - Verifying the Terminal IP Address
    - Changing Your Password on the Terminal
    - Processing a Transaction
    - Troubleshooting Terminal Issues
  - Verifone VX820
    - USB Connectivity Configuration
    - Ethernet Connectivity Configuration
    - Windows Setup
    - User Guide
    - FAQ
- Miura Card Readers
  - USB Connectivity Configuration
  - Windows Setup
  - Customization
  - Troubleshooting

Merchant Setup
- AMEX Merchant Setup
- Barclaycard APACS Merchant Setup
- Barclaycard HISO Merchant Setup
- Credorax Merchant Setup
- Elavon Merchant Setup
- EVRY Merchant Setup
- net-m Privatbank Merchant Setup
- Nexi Merchant Setup
- Stripe Merchant Setup
  - Stripe Direct and Stripe Connect
  - Stripe Connect

Processing a Transaction

When your point-of-sale (POS) system calculates a transaction total, the terminal prompts the customer to present a card for payment. The customer swipes, inserts, or taps their card in or on the terminal.

To ensure that the terminal can read the payment card, your customer must follow these steps when presenting their payment card at the terminal:

To swipe the card, place the card in the card slot on the right side with the magnetic stripe down and facing away from you, and swipe the card.

To insert the card, insert the chip end of the card into the terminal's card slot with the chip facing upward and do not remove until prompted by the terminal.

To tap the card, hold the card close to the terminal screen (the card does not have to touch the terminal) until the card is accepted. When the card is accepted and the transaction completed, the POS prints a receipt for the cardholder and the merchant.

To abort a transaction, pressing the red

X

on the terminal keypad.