WooshPayment Documentation
Everything you need to integrate a branded checkout on your Shopify or WooCommerce store and start accepting Apple Pay, Google Pay, and card payments in 10 minutes.
Setup, signup, first checkout.
Shopify, WooCommerce, custom.
Whop, Apple Pay, Google Pay.
Server-side Meta CAPI + TikTok + GA4.
All guides
Get started
- Quickstart in 5 minutes
Create your first WooshPayment branded checkout, connect your store and send a test order in 5 minutes.
3 min read - How WooshPayment works
Checkout architecture, the roles of Shopify, Whop and WooshPayment, and the customer flow from cart to confirmed order.
3 min read - Pre-launch checklist (18 items)
The checks to run before sending the first real customer to the WooshPayment checkout. Bookmark the page and tick them all off.
2 min read
Store integration
- Shopify integration
Connect Shopify to WooshPayment via OAuth Public App. ScriptTag auto-installed, orders synced, minimal scopes.
3 min read - WooCommerce integration
Connect a WooCommerce store to WooshPayment via REST API. Works with WordPress 6.0+ and WooCommerce 8.0+.
4 min read - Shopify script tag debug
The WooshPayment redirect script isn't intercepting Shopify's Check out button? Here are the most frequent causes and how to fix them in 10 minutes.
3 min read - WooCommerce plugin — 1-click install
Install the official "WooshPayment Checkout" WordPress plugin on your WooCommerce store. 2 minutes, zero code. Intercepts the "Proceed to checkout" button and redirects to your branded checkout.
6 min read - WooCommerce Subscriptions — current status
WooshPayment supports WooCommerce one-time products. Recurring subscriptions are on the roadmap. Here's what works today and what doesn't.
3 min read - Connecting Shopify in 2026 (Dev Dashboard + OAuth)
Step-by-step guide to connecting your Shopify store to WooshPayment after legacy Custom Apps were retired (Jan 1, 2026). Create a dev-app in the Dev Dashboard, give us Client ID + Secret, complete install via OAuth. ~3 minutes.
7 min read
Payments
- Connect Whop to WooshPayment
Click-by-click guide to link your Whop to WooshPayment in 10 minutes. Includes creating the Access Pass product, copying the prod_xxx ID from the URL, generating an Owner-role API key, and the connect form.
9 min read - Apple Pay Setup
Enable Apple Pay on your WooshPayment checkout. Auto-registration on your Whop at first connect, no Apple Developer Account needed.
3 min read - Cash on Delivery (COD)
Enable Cash on Delivery on WooshPayment for IT/ES/RO/PL markets. Setup in 60 seconds.
2 min read - Connect Whop to WooshPayment (fast-track)
Step-by-step visual guide to connect your Whop account to WooshPayment. Create a dedicated API key, reveal it, and paste it into Dashboard → Integrations. 5 minutes.
7 min read - Refund flow
How to handle refunds on WooshPayment. Step-by-step procedure with automatic sync to Whop and Shopify/Woo.
2 min read - VAT & taxes on Whop
Why Whop adds VAT, how WooshPayment charges tax-inclusive, and how to decide/disable VAT calculation in your Whop account before launching.
2 min read
Checkout
- Checkout branding
Customize the logo, colors, trust badges and copy of your WooshPayment checkout to reflect your brand.
3 min read - Transactional emails
Which emails WooshPayment sends, from which sender, with which DNS. Emails to the end customer are sent by your store, not us.
2 min read - Custom checkout CSS
Extend the checkout with custom CSS. Automatic sanitization to block XSS, MITM and payment flow bypass.
2 min read - Markets and languages
Configure multi-country markets with currency, checkout language and price adjustments per geographic zone.
3 min read
Marketing
- Marketing pixels (GA4, GTM, Meta, TikTok)
Configure supported marketing pixels to track conversions. Client + server events (CAPI) for post-iOS 14.5 accuracy.
3 min read - Connect WeTracked (ad conversion tracking)
Visual guide to connect WeTracked to your WooshPayment branded checkout. Register the funnel, enable server-side tracking, verify. Accurate conversions to Meta and TikTok.
3 min read
Account & Billing
- Plans and pricing
Starter (free), Growth ($29/month) and Scale ($99/month). What's included, when to upgrade.
3 min read - Custom domain (checkout.yourstore.com)
Map the WooshPayment checkout to your own domain (checkout.yourstore.com) instead of the default. Available to all merchants, no plan gating.
3 min read - Billing and plan management
Manage your WooshPayment plan, subscribe or cancel via Whop, download receipts.
2 min read
Operations
- Managing refunds
How to refund an order. Full refunds available today, partial refunds and dispute UI on the roadmap.
3 min read - Audit log
Tracking of admin actions. Available today on the platform super-admin side. For merchants it's on the roadmap as a Scale feature.
1 min read - GDPR and privacy
Data controller/processor roles, sub-processor list, data retention, procedure for handling your customers' GDPR requests.
4 min read
API
- Webhook
Incoming webhooks from Whop and Shopify that WooshPayment receives. Custom outgoing webhooks to merchants are on the roadmap.
2 min read - API reference
WooshPayment REST endpoints for custom integrations. Today primarily internal server-to-server endpoints; public merchant API on the roadmap.
4 min read
Troubleshooting
- Payment fails
Diagnosing when a payment doesn't go through. Common causes and fixes.
4 min read - Email not arriving
Debug the "I didn't receive the verification / password reset / order notification email" problem. Outlook Junk, SPF/DKIM/DMARC, blacklist.
3 min read - Shopify got disconnected
Dashboard shows "Shopify not connected" or orders aren't being created on Shopify. Re-OAuth procedure in 2 minutes.
3 min read - Historical bugs resolved
Catalog of significant WooshPayment bugs resolved in the past. Technical transparency for merchants evaluating stability.
5 min read