NMI Payment Gateway for WooCommerce

NMI Payment Gateway for WooCommerce is a secure payment solution by Robust Softech that allows your customers to pay using credit cards through the Network Merchants Inc (NMI) payment gateway.

Developed by Robust Softech Private Limited – A complete credit card payment solution for modern e-commerce.

Key Features

• Credit Card Processing – Secure credit card payments with Collect.js tokenization
• Tokenization Support – Save customer payment methods for future use
• Subscription Support – Full WooCommerce Subscriptions integration
• Refund Support – Process refunds directly from WooCommerce
• HPOS Compatible – Works with WooCommerce High-Performance Order Storage
• WooCommerce Blocks – Compatible with the new block-based checkout
• Environment Switching – Production/Sandbox environments
• Debug Logging – Comprehensive logging for troubleshooting

Security Features

• Collect.js Integration – Most secure payment method (default)
• PCI DSS Compliant – Through NMI’s secure processing
• Tokenization – Secure card storage
• SSL Encryption – All transactions encrypted

Easy Setup

1. Install and activate the plugin
2. Enter your NMI API credentials (Private Security Key + Public Key)
3. Choose your environment (Production/Sandbox)
4. Start accepting credit card payments!

Configuration

Required Settings

• Enable/Disable: Turn the gateway on/off
• Title: Payment method name shown to customers
• Description: Payment method description
• Environment: Choose Production or Sandbox
• Private Security Key: Your NMI Private Security Key
• Public Key: Your NMI Public Key for tokenization

Optional Settings

• Payment API Method: Choose between Collect.js (recommended) or Direct Post
• Transaction Type: Sale (authorize & capture) or Authorize Only
• Accepted Cards: Select which card types to accept
• Debug Log: Enable logging for troubleshooting

Testing

Sandbox Testing

1. Set Environment to “Sandbox”
2. Use test card numbers:
   • Visa: 4111111111111111
   • Mastercard: 5555555555554444
   • American Express: 378282246310005
3. Use any future expiry date and any 3-digit CVV
4. Test successful and failed transactions

Production Setup

1. Set Environment to “Production”
2. Enter your live NMI credentials
3. Test with small amounts first
4. Monitor debug logs for any issues

Troubleshooting

Common Issues

Payment method not showing on checkout:
– Check if gateway is enabled
– Verify API keys are entered correctly
– Ensure WooCommerce is active

Payment fails with “Invalid credentials”:
– Verify Private Security Key is correct
– Check if Public Key is properly set
– Ensure environment matches your credentials

Collect.js fields not loading:
– Check browser console for JavaScript errors
– Verify Public Key is valid
– Ensure SSL certificate is active

Debug Logging

Enable debug logging in plugin settings to troubleshoot issues:
1. Go to WooCommerce > Settings > Payments
2. Click “Set up” on NMI gateway
3. Enable “Debug log”
4. Check logs at: WooCommerce > Status > Logs

Support

For support and documentation, visit: https://nmipro.com

Disclaimer

Network Merchants Inc (NMI) is a trademark of its respective owner. This plugin is an independent integration developed by Robust Softech Private Limited and is not affiliated with, endorsed by, or sponsored by Network Merchants Inc.