Must have features for E-commerce web/app

User Experience and Frontend:

1. User-Friendly Interface: Intuitive design and easy navigation.
2. Responsive Design: Compatibility with various devices and screen sizes.
3. Fast Loading Times: Optimize for quick page load times.
4. Product Search: Robust search bar with autocomplete and suggested results.
5. Filters and Sorting: Option to filter products by category, price, size, etc.
6. Product Images: High-quality images with zoom and multiple angles.
7. Product Descriptions: Detailed information, specs, and features.
8. Product Videos: Video demonstrations and tutorials for products.
9. Customer Reviews and Ratings: User-generated feedback and ratings.
10. Related Products: Display of related or complementary items.
11. Wishlist: Users can save products for future purchase.
12. Social Sharing: Buttons to share products on social media.
13. Discounts and Promotions: Display special offers and deals prominently.
14. Multiple Currency and Language Support: Localization for global customers.

Shopping Cart and Checkout:

15. Add to Cart: Easy product addition with real-time updates.
16. Cart Preview: Display of cart contents and subtotal.
17. Guest Checkout: Option to checkout without creating an account.
18. User Accounts: Registration and login for personalized experiences.
19. Saved Addresses: Users can save multiple shipping addresses.
20. Secure Payment: Integration with trusted payment gateways.
21. Multiple Payment Options: Credit/debit cards, digital wallets, etc.
22. Coupon Code: Option to apply discount codes during checkout.
23. Shipping Options: Various shipping methods with cost calculation.
24. Order Summary: Detailed breakdown of items, taxes, and shipping costs.
25. Order Confirmation: Instant confirmation and order ID.
26. Order Tracking: Real-time updates on order status and shipment.
27. Abandoned Cart Recovery: Automated emails to remind users of abandoned carts.

User Accounts and Management:

28. Dashboard: User-friendly account overview with order history.
29. Order Tracking: View current and past orders.
30. Wishlist Management: Add, remove, and prioritize wishlist items.
31. Address Book: Manage saved shipping addresses.
32. Profile Settings: Update account information and preferences.
33. Password Recovery: Secure option for password reset.

Admin and Backend:

34. Product Management: Easy addition, editing, and deletion of products.
35. Inventory Tracking: Real-time monitoring of product availability.
36. Order Management: Monitor, process, and fulfill orders.
37. Customer Management: View and manage customer accounts.
38. Analytics and Reporting: Track sales, user behavior, and site performance.
39. Content Management System (CMS): Manage website pages and content.
40. Security and Fraud Prevention: Implement security measures to prevent fraud.
41. SEO Optimization: Tools to optimize content for search engines.

Customer Support:

42. Contact Information: Clearly displayed contact details.
43. Live Chat: Real-time chat support for customer inquiries.
44. FAQ and Help Center: Comprehensive self-help resources.
45. Returns and Refunds: Clearly stated policies and easy return process.

Marketing and Promotion:

46. Newsletter Signup: Option to subscribe to email updates.
47. Email Marketing: Send promotional emails and updates to subscribers.
48. Product Recommendations: AI-powered suggestions for users.
49. Loyalty Programs: Reward points, discounts, and incentives for loyal customers.

Integration and Third-Party Tools:

50. Social Media Integration: Links to social media profiles.
51. Analytics Tools: Integration with Google Analytics or similar tools.
52. Payment Gateways: Integration with various payment providers.
53. Shipping Carriers: Integration with shipping services for accurate rates.

Legal and Compliance:

54. Terms and Conditions: Clearly stated terms of use and privacy policy.
55. GDPR Compliance: Adherence to data protection regulations.

Thus, these constituted the paramount elements of an e-commerce website. Naturally, adjustments or additions might be necessary based on your business nature and offerings. Nonetheless, this visual representation will furnish you with a fundamental grasp of the prerequisites for a typical e-commerce site.

 See our E-commerce Web/App Case Studies here