How To Integrate Network Merchants Inc. (NMI)

How To Integrate Network Merchants Inc. (NMI)

NMI (Network Merchants Inc.) is a well-known payment service provider that offers a variety of solutions for businesses to process online transactions securely and efficiently. NMI’s payment gateway allows merchants to accept credit card and eCheck payments from their customers through multiple channels, including websites, mobile apps, and in-person point-of-sale systems.

How Can I Enable Payments Via NMI? #

NMI integration is currently supported for order forms, invoices, and Text2Pay link payments. To enable NMI in your CRM, head to the Integrations tab in the Payments section, scroll down to find the NMI option, and click Connect.

Fill in the required Gateway ID, Security Key, and Public Key for both the Live and Sandbox sections, then click Save to apply your NMI integration settings.

NMI Payment Offers #

Some of the features offered by the NMI payment gateway include:

  • Support for multiple currencies and payment methods: NMI supports various currencies and payment methods, allowing businesses to cater to a global audience.
  • Tokenization and encryption: NMI’s platform uses tokenization and encryption technologies to ensure that sensitive cardholder information is securely transmitted and stored, minimizing the risk of fraud and data breaches.
  • Fraud prevention tools: NMI offers fraud prevention tools, such as Address Verification System (AVS) and Card Verification Value (CVV), to help merchants identify and block potentially fraudulent transactions.
  • Customizable checkout experience: Merchants can customize the look and feel of their checkout process to match their branding, ensuring a seamless customer experience.
  • Recurring billing and subscription management: NMI supports recurring billing and subscription management, making it easy for businesses to offer subscription-based products or services.
  • Integration options: NMI offers a range of integration options, including APIs and pre-built plugins, making it easy to connect the payment gateway to various e-commerce platforms, shopping carts, and other third-party software.
  • Reporting and analytics: NMI’s platform provides comprehensive reporting and analytics tools that allow merchants to track and analyze transaction data.
  • Customer vault: Merchants can securely store their customers’ payment information in NMI’s customer vault, simplifying the checkout process for returning customers and making it easy to manage recurring payments.

Frequently Asked Questions #

How do I connect NMI to my CRM? #

Go to the Integrations tab in the Payments section, scroll to the NMI option, and click Connect. Enter the Gateway ID, Security Key, and Public Key for both the Live and Sandbox sections, then click Save.

Do I need to create new products or sync them with NMI? #

No syncing is required. You only need to create a one-time or recurring product under Payments → Products, and it will work according to the price you defined. Existing products used with Stripe or PayPal will work with NMI by switching the default provider under Payments → Integrations.

What payment methods does NMI support? #

Only credit and debit card payments can be accepted through the NMI integration. Apple Pay, Google Pay, and eCheck payment methods are not supported.

Does NMI support recurring purchases, and where can I track them? #

Yes, recurring product purchases are supported. You can track subscriptions under Payments → Subscriptions and view order details in the Orders and Transactions table.

Do I have to disconnect Stripe to connect NMI? #

No. You can connect both gateways on the integrations page. Because two gateways are connected, you must define a default gateway for processing order form payments. Existing Stripe or PayPal subscriptions will continue to run as long as those connections remain in place.

Which payment areas does NMI cover, and can I issue refunds in-app? #

NMI processes invoices, Text2Pay links, and order form payments; other areas such as calendars, SaaS, and memberships continue to use Stripe. Refunds are not currently available within the application, so refunds should be processed through the merchant portal. Subscriptions created via NMI can be canceled from the Subscriptions page using the Cancel Subscription action.

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Updated on May 26, 2026
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