Developers and integrations
Create a full or partial refund through the API
Refund an eligible gateway payment with an explicit amount and a stable idempotency key.
Product help
Guides, answers and release notes for DHRU products.
Developers and integrations
Create a hosted checkout order
Create an order on your server and redirect the customer to the returned payment URL.
Developers and integrations
Find a PayerOne plugin for your platform
Download available packages from the dashboard and follow the package instructions for your platform.
Developers and integrations
Find and protect your API credentials
Use the Merchant Token for API requests and the Private Key to verify webhook signatures.
Developers and integrations
Handle API errors and uncertain responses
Resolve validation and access errors without duplicating orders or refunds.
Developers and integrations
Track refunds and prevent duplicate requests
Read refund status, available amounts and provider reconciliation without creating another refund.
Developers and integrations
Verify your integration before accepting customers
Review requests, signed test events, confirmation and duplicate handling in the complete payment flow.
Development
Build a payment gateway module for an old installation
Preserve the legacy PHP naming convention, configuration function, payment-link function and callback file workflow.
Development
Customize templates and language files
Preserve legacy template structure, Smarty syntax, appearance settings and language-file formatting.
Development
Use the archived client remote API references
Find the original Updated V2 Postman collection and PHP example reference for the installed Fusion build.
Discounts & offers
Configure a Buy X Get Y offer
Define what the customer buys, receives and pays for the qualifying items.
Discounts & offers
Create a discount-code offer
Set the offer type, value, code and customer eligibility in the current Admin.
Discounts & offers
Generate codes and review offer usage
Prepare the code set before creation and inspect recorded redemption afterward.
Discounts & offers
Set discount eligibility, dates and usage limits
Limit an offer to the intended purchase and customer audience.
Discounts & offers
Show an eligible discount at checkout
Publish one supported code-based offer while preserving its restrictions.
Express Wallet
Change an Express Wallet destination safely
Understand the customer-address impact before editing or removing an Express Wallet.
Express Wallet
Find Express Wallet customers and deposits
Match a customer ID, email, or receive address to the relevant payment records.
Express Wallet
Integrate Express Wallet on your website
Request customer wallet instructions and verify deposits with the merchant API.
Express Wallet
Set up Express Wallet
Configure the destination wallet and networks used for customer-specific Express Wallet addresses.
Help Center
Control article visibility and AI use
Separate publishing, customer access, and the places AI may use an article.