PhonePe payment gateway

CartModules: PhonePe Payment Gateway

Accept payments from 500+ million PhonePe users in India directly in your CS-Cart or Multi-Vendor store. This addon integrates PhonePe's secure PAY_PAGE redirect flow, supporting India's most popular payment methods.

Supported Payment Methods

• UPI — PhonePe app, Google Pay, Paytm, and all UPI-enabled apps
• Credit & Debit Cards — Visa, Mastercard, Rupay
• Net Banking — All major Indian banks
• Wallets — PhonePe wallet and other supported wallets

Key Features

• Secure SHA256 checksum verification on every API call
• Redirect-based flow (PCI DSS SAQ A compliant — no card data touches your server)
• Server-to-server webhook for reliable payment confirmation
• Built-in sandbox/test mode toggle for development and testing
• Configurable order status mapping for completed, failed, and pending payments
• Amounts automatically converted to paise (INR smallest unit)
• Idempotent callback handling — prevents duplicate order processing
• Structured logging with sensitive data redaction

Target Market

India — PhonePe is one of India's largest digital payment platforms, processing billions of transactions monthly via UPI. This addon is designed for stores selling in INR (Indian Rupees).

Requirements

• CS-Cart or Multi-Vendor 4.x
• PHP 7.1 or higher
• PhonePe merchant account with API credentials (Merchant ID, Salt Key, Salt Index)
• SSL certificate on your store (required for webhook callbacks)

Installation

1. Go to Add-ons > Manage add-ons, click Manual installation, and upload the addon zip
2. Activate the addon and enter the license key
3. Go to Administration > Payment methods and add a new payment method
4. Select "PhonePe Payment Gateway" as the processor
5. Enter your Merchant ID, Salt Key, and Salt Index from the PhonePe dashboard
6. Set Payment mode to "Test (Sandbox)" for testing, then switch to "Live (Production)" when ready