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Getting Started Guide
API Reference Guide
Client Libraries
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One-Time Transactions
Credit Card Process
Life of a Transaction
Voids and Credit
Creating A Transaction
Partial Authorizations
Basic Fraud Settings
Recurring Billing
Subscriptions
Payment Schedule
Merchant Notification
Subscription Status
Updating Subscriptions
Subscription Reporting
Customer Profiles
Customers
Payment Profiles
Shipping Profiles
Duplicate Profile Verification
Using the Hosted Form
Charging Customer Profiles
Create a Customer Profile Transaction Request
Refunds
PayPal Express Checkout
Button Placement
Transaction Types
Transaction Flow
Error Response Codes