# RabbitPay Documentation > Developer documentation for RabbitPay — the 1-Click Checkout platform for Shopify merchants. - [Introduction](https://rabbitpay.ai/documentation/getting-started/introduction.md): Meet RabbitPay — the 1-Click Checkout platform built for Shopify merchants. - [Quick Start](https://rabbitpay.ai/documentation/getting-started/quick-start.md): Go from zero to your first RabbitPay test order in under 10 minutes. - [Installation](https://rabbitpay.ai/documentation/getting-started/installation.md): Install RabbitPay on Shopify or wire it into a headless storefront. - [Shopify](https://rabbitpay.ai/documentation/getting-started/shopify-integration.md): Grant RabbitPay secure collaborator access to your Shopify store for installation and onboarding. - [One Click Checkout for Shopify](https://rabbitpay.ai/documentation/getting-started/one-click-checkout.md): Set up and activate RabbitPay One Click Checkout on your Shopify store with this step-by-step guide. - [How to Set Up Partial Payment](https://rabbitpay.ai/documentation/integrations/partial-payments.md): Configure Partial Payment to collect a fixed amount or percentage of the order value before dispatching a COD order. - [How to Set Up COD Fees](https://rabbitpay.ai/documentation/integrations/how-to-set-up-cod-fees.md): Reduce RTO with OTP verification, risk scoring, and COD rules. - [How to Set Up a Prepaid Discount](https://rabbitpay.ai/documentation/integrations/prepaid-discount.md): Offer customers a discount when they choose prepaid payment at checkout. - [Generate Razorpay API Token](https://rabbitpay.ai/documentation/integrations/razorpay/generate-api-token.md): Generate and manage Razorpay API keys for use with RabbitPay. - [Configure Razorpay Webhook](https://rabbitpay.ai/documentation/integrations/razorpay/configure-webhook.md): Configure the Razorpay webhook so RabbitPay receives real-time payment updates. - [Generate Razorpay QR Code](https://rabbitpay.ai/documentation/integrations/razorpay/generate-qr-code.md): Enable Razorpay QR functionality for UPI QR payments through RabbitPay. - [Generate Meta Pixel Access Token](https://rabbitpay.ai/documentation/integrations/meta-pixel/generate-access-token.md): Generate the Meta Pixel ID and Conversions API Access Token required to connect Meta Pixel with RabbitPay. - [How to Configure Zipcode Restrictions](https://rabbitpay.ai/documentation/integrations/zipcode-restrictions.md): Restrict payment rules for selected delivery zipcodes or zipcode ranges in RabbitPay. - [COD to Prepaid](https://rabbitpay.ai/documentation/integrations/convert-cod-to-prepaid.md): Encourage customers to choose prepaid payment over Cash on Delivery (COD) during checkout. - [Cart Value Rules](https://rabbitpay.ai/documentation/integrations/payment-rules-by-cart-value.md): Configure payment rules based on cart value to control when Cash on Delivery (COD), Partial Payment, or Full Payment is available during checkout. - [How to Disable Cash on Delivery for Specific Products](https://rabbitpay.ai/documentation/integrations/disable-cod-for-products.md): Restrict Cash on Delivery for specific products in your Shopify store using RabbitPay payment rules. - [abandoned-cart-recovery](https://rabbitpay.ai/documentation/integrations/abandoned-cart-recovery.md): Recover abandoned Shopify checkouts with automated WhatsApp reminders and direct checkout links using RabbitPay. - [Create a Cart for a Customer](https://rabbitpay.ai/documentation/integrations/abandoned-cart-recovery/create-cart.md): Create a customer cart directly using their mobile number or restore an existing abandoned checkout with RabbitPay. - [Checkout Flow](https://rabbitpay.ai/documentation/product/checkout-flow.md): Anatomy of the RabbitPay 1-Click Checkout experience. - [Order Management](https://rabbitpay.ai/documentation/product/order-management.md): Manage orders, fulfillment status, refunds, and cancellations. - [OTP Verification](https://rabbitpay.ai/documentation/product/otp-verification.md): Verify Cash on Delivery (COD) orders using OTP sent via SMS or WhatsApp before customers proceed to checkout. - [How to Accept UPI QR Code Payments in Shopify Checkout](https://rabbitpay.ai/documentation/product/upi-qr-payments.md): Accept UPI QR payments directly inside RabbitPay Checkout using your Razorpay QR Code without redirecting customers to a separate payment page. - [FAQs](https://rabbitpay.ai/documentation/support/faqs.md): Answers to the most common questions about RabbitPay. - [contact-us](https://rabbitpay.ai/documentation/support/contact-us.md) - [Dashboard Handbook](https://rabbitpay.ai/documentation/dashboard-handbook/overview.md): Guide to using the RabbitPay merchant dashboard. - [How to Add GSTIN for GST-Compliant Shopify App Fee Invoices](https://rabbitpay.ai/documentation/dashboard-handbook/add-gst-in.md): Add your GSTIN and business details in RabbitPay to keep your Shopify app fee invoices GST-ready. - [How to Control Payment Option Priority at Shopify Checkout](https://rabbitpay.ai/documentation/dashboard-handbook/payment-option-priority.md): Control which payment option appears first at Shopify checkout by changing the priority of your RabbitPay payment rules. - [Authentication](https://rabbitpay.ai/documentation/api/authentication.md): How to authenticate requests to the RabbitPay REST API. - [api-reference](https://rabbitpay.ai/documentation/api/api-reference.md) - [Webhooks](https://rabbitpay.ai/documentation/api/webhooks.md): Subscribe to real-time RabbitPay events — orders, payments, refunds, and more. - [Changelog](https://rabbitpay.ai/documentation/support/changelog.md): Product and API release notes for RabbitPay.