E-commerce App Development Checklist: From Product Catalogue to Fulfilment

Commerce starts before the interface

A polished store cannot compensate for unclear inventory, pricing, fulfilment or return rules. Document the commercial model and operational owners before finalising screens.

For a marketplace, add seller onboarding, commissions, payouts, disputes and catalogue approval to the same conversation.

Customer experience checklist

• Fast category, search, filter and product discovery
• Accurate variants, availability, delivery and pricing
• Guest or low-friction account creation
• Address, coupon, shipping and tax handling
• Secure payment with clear failure and retry states
• Order tracking, cancellation, return and support

Operations checklist

• Product and inventory administration
• Order routing and fulfilment status
• Refund, cancellation and exception queues
• Promotion and content controls
• Customer support history and notifications
• Role-based access, reports and audit records

Payment integration is more than a button

A Razorpay or other gateway integration should verify payments on the server, reconcile orders, handle webhooks and protect against duplicate processing. The customer needs an honest state when a payment is pending or interrupted.

Refund ownership, settlement reporting and failed-payment recovery should be decided before launch.

Launch with measurable journeys

• Product view to add-to-cart rate
• Checkout completion and payment failures
• Search queries with no useful result
• Cancellation and return reasons
• Repeat purchase and support volume