WP Simple Pay Documentation
Advanced Usage
Discover advanced ways to use and modify WP Simple Pay's functionality.
-
How to Update Your ACH Direct Debit Settings for NACHA Compliance
Starting in 2026, NACHA (the organization that governs ACH payments in the U.S.) introduced new rules requiring ACH Direct Debit transactions to include a classification that identifies whether a payment is for goods,...
-
How to Launch Overlay from Other Buttons or Links
Learn how to launch a custom overlay or Stripe Checkout payment form from custom buttons or links.
-
How to Add Custom CSS to WP Simple Pay
Learn how to style WP Simple Pay payment forms with custom CSS.
-
How to Configure an Advanced Stripe Webhook Setup
Learn the Advanced setup options for webhooks. This is not needed for most sites.
-
How to Add Custom Code to WP Simple Pay
Learn how to add specific functionality to WP Simple Pay payment forms via custom code.
-
How to Customize the Payment Method Appearance
Learn how to customize the appearance of Stripe's secure iframe elements.
-
How to add conversion tracking codes to WP Simple Pay
Learn how to add tracking codes to WP Simple Pay
-
How Can I Use a Restricted API Key?
Learn how to manually supply a restricted Stripe API key (advanced).
-
How to Translate WP Simple Pay
Learn the recommended way to translate WP Simple Pay into another language.
-
How to Use Stripe Checkout’s Custom Domain Feature
Learn how to use Stripe's hosted payment pages with a custom domain.
-
How to Export and Import WP Simple Pay Payment Forms
Learn how to export and import your WP Simple Pay payment forms using built-in WordPress features.
-
How to Change Payment Form Default Style Options
Learn how to change the basic style and CSS settings available for payment forms and buttons.
Start Accepting Payments Today
Start accepting one-time and recurring payments or donations on your WordPress website.