ifthenpay | Payments for Ninja Forms

This plugin integrates the ifthenpay payment gateway with Ninja Forms to enable seamless payment collection directly from your forms. Payments are processed through a secure pay-by-link system, ensuring that no sensitive card or banking data is stored on your website. Customers can complete payments using their preferred method via a secure payment page.

After submitting a form, users are redirected to ifthenpay’s secure hosted payment page to complete the transaction; ifthenpay then sends a server-side callback to update the payment status automatically.

In plain terms you get:

• One-time payments directly from Ninja Forms’ Collect Payment action

• Payment amount automatically follows your form’s own total (e.g. Ninja Forms Calculations)

• Merchant backoffice (basic sales) on web + mobile

• Secure automatic payment confirmations (no card numbers stored)

All settings are made in Ninja Forms and in your ifthenpay Backoffice. The plugin is built so site owners can manage payments without needing deep technical knowledge.

Key Features

• Full integration with Ninja Forms’ Collect Payment action

• Secure transactions

• Automatic payment confirmation

• Support for multiple payment methods (Multibanco, MB WAY, Payshop, Pix, Credit Card and more — whatever’s enabled on your Gateway Key)

• Payment methods catalog synced live from your ifthenpay account, with in-admin “Request Activation” for methods not yet enabled

• Secure full-page redirect to ifthenpay’s hosted payment page

• Real-time payment status in Ninja Forms entries

• Multi-language support (EN, ES, FR, PT)

• Security first (no card data stored)

Requirements

• An active ifthenpay merchant account — subscribe here to obtain your credentials.

• A Ninja Forms Gateway Key (request this from ifthenpay support/helpdesk).

• The payment methods you want enabled on that Gateway Key (our helpdesk team will guide you).

• WordPress 6.4+ and PHP 7.4+, and Ninja Forms installed and activated.

• HTTPS (SSL) enabled on your site.

External Services

This plugin integrates with the ifthenpay payment platform to process payments for Ninja Forms submissions. ifthenpay is a third-party service that provides secure payment processing for local payment methods such as Multibanco, MB WAY, Payshop, and Pix, plus Credit Card and more, depending on what’s enabled on your account.

Ninja Forms

• What it is and what it is used for: A form builder plugin used to create payment forms. This plugin extends its payment capabilities.

ifthenpay Backoffice & Integrations

• What it is and what it is used for: The ifthenpay Backoffice is the merchant dashboard used to manage integrations and payment configurations. The plugin uses the ifthenpay API to generate payment links and validate transactions.

• What data is sent and when:

• During setup: Backoffice Key and Gateway Key for authentication and configuration retrieval.

• During payment processing: Order reference ID, amount, description, enabled payment method accounts, success/error/cancel return URLs, language, and optionally the selected payment method position. No customer name, email, or form field data is included in this request.

• During webhook registration: the Gateway Key and this site’s callback URL, so ifthenpay can notify the site directly when a payment resolves.

• During payment method activation requests: when an admin requests activation of a new payment method from Ninja Forms → Settings → Payments, an email is sent to ifthenpay support ([email protected]) containing the Backoffice Key, Gateway Key, the requested payment method, the admin’s email address, site URL, site name, WordPress version, Ninja Forms version, and plugin version.

• During callbacks: Payment status and payment method.

• End-User License Agreement (EULA): https://ifthenpay.com/eula/

• Privacy Policy: https://ifthenpay.com/politica-de-privacidade/

All network requests are performed server-side over HTTPS. Sensitive credentials are stored securely and are not publicly exposed. No raw card or bank details are stored.

Security

com with “Security” in the subject line, not in the public support forum. md in the plugin folder for what to include and what happens next.

Support

org/support/plugin/ifthenpay-payments-for-ninja-forms/

Pre-checks:

• Payment method enabled on Gateway Key AND mapped to Integration

• Running current recommended versions of WordPress, PHP, & Ninja Forms

com/

• ifthenpay support: [email protected]

• Ninja Forms docs: https://ninjaforms.com/docs/