ShopOS

What it does

Two modes

Start as a single-brand store. Switch on marketplace mode in Settings and other sellers can apply, list their products, ship their own orders and get paid out, minus your commission. Your own products stay on sale beside theirs.

Any product

Physical goods with sizes and colours (up to 3 options and 100 variants), digital downloads with secure links, services and bookings with time slots, made-to-order items with buyer questions and photo uploads, combos, gift cards, pre-orders and wholesale price breaks.

Storefront

A photo-led storefront in your logo and colours, in the style of India's big fashion and shopping apps: sliding hero banners, round category stories, deals, trending and new-arrival rows, a second photo on hover, discount and rating on every card, shop-by-price tiles and full-width category banners. Plus filters, search that forgives typos ("kurtha" finds kurtas), a delivery check by pincode, reviews from verified buyers, wishlist, guest checkout, order tracking without an account, phone-first layouts with a sticky buy bar, a sitemap and Google product data.

Checkout

Prices with GST; coupons (percent, flat, free delivery, first order, per seller); gift cards; a GST invoice for business buyers; cash on delivery with an OTP and a fake-order risk score; COD fee and limits; shipping charges by pincode or state.

Payments

Razorpay, Cashfree, PhonePe, Stripe and PayPal, UPI to your own UPI ID with a QR code, and cash on delivery. Payments are confirmed from the gateway even if the buyer closes the page, and refunds go back through the gateway.

Shipping

Shiprocket (label, pickup and tracking booked for you), Delhivery, any courier by hand, store pickup, or your own delivery staff with a phone app: tap to call, open the map, OTP at the door. 4×6 labels and packing slips.

Marketplace

Seller applications with KYC documents and approval, product approval, commission by seller, category or store default plus a fixed fee per order, GST TCS and TDS deductions, a ledger per seller, payouts after the return window and a bank-file export.

GST

Each seller is the supplier: invoices in the seller's name and GSTIN with their own number series, CGST and SGST or IGST from the place of supply, HSN on every line, GST summaries per seller and a Tally export.

Returns

Buyers request a return from their account with photos; the seller or your team approves, receives and restocks; refunds go through the gateway, or by UPI for cash orders, and the seller's ledger is reversed item by item.

Messages

Email from your own mail server, WhatsApp updates with your approved templates, SMS OTPs through MSG91, abandoned-cart reminders and low-stock digests.

Connections

A REST API with keys and signed webhooks for 17 events; Google Merchant Center and Meta catalogue feeds; GA4 and Meta Pixel tracking; AI-written product descriptions with your own Claude API key.

Security

Payment, courier and messaging keys, sellers' bank account numbers, PAN and KYC documents encrypted with AES-256-GCM · passwords hashed with bcrypt · role checks on the server for every page and action, so a seller only ever sees their own data · login lockout · security headers · an audit log of sign-ins, exports and KYC views · optional encrypted backups · 32 automated security tests.

Team

12 roles on one sign-in page: Owner, Admin, Manager, Catalogue, Orders, Support, Accounts, Marketing, Delivery, Seller owner, Seller staff and Customer. Each sees only their part; sellers only ever see their own data. An audit log of every change.

Tested: 33 automated tests on the pricing, GST, order and payout engine and on security, 16 end-to-end security tests, a browser check of 84 screens signed in as every role, and an end-to-end test in which a buyer orders from two sellers with cash on delivery and a seller ships and delivers their parcel.