One e-commerce engine across your store and every marketplace.
We build the Shopify store, connect it to Amazon, Flipkart and the marketplaces your buyers use, and run Google, Meta and marketplace ads against contribution margin, so ROAS rises without the business quietly losing money on every order Run for businesses in Thane.
- Shopify store built to convert
- Amazon, Flipkart, Meesho, Noon and more, in sync
- Ads judged on margin, not reported ROAS
What E-commerce & Marketplace Growth includes
Most growing product brands sell in three or four places at once: their own store, one or two large marketplaces, and sometimes a quick-commerce or regional platform. Each channel usually has its own agency or freelancer, its own reporting and its own idea of success. Inventory drifts, prices conflict, and nobody can say which channel actually makes money.
This programme puts all of it under one team. We build or rebuild the Shopify store, set up and optimise your marketplace accounts, connect inventory, orders and pricing so they stay in sync, and run advertising across Google, Meta, Amazon and Flipkart against one target: profitable growth measured in contribution margin.
It includes the work in our Shopify Commerce Build programme, and adds marketplaces, integrations and full-funnel advertising on top. For a brand that only needs a store, that programme alone is the better fit, and we will say so.
In Thane: we run this programme for businesses across Thane, remotely from our base in Kolkata, India, with reviews scheduled inside your working hours. Individual services start at ₹35,000 per month. The discovery call is ₹499.
Why most multichannel brands grow revenue but not profit
Revenue on marketplaces is easy to buy. Profit is not. Commissions, fulfilment fees, returns, advertising and discounting can take most of the selling price, and a channel showing strong sales can be losing money once every fee is counted.
The same is true of reported ROAS. A Meta account at 4x and an Amazon account at 6x can both be unprofitable if margins are thin or returns are high. The brands that grow profitably set a break-even ROAS per product and per channel, and manage to that.
Each channel needs its own economics
Amazon, Flipkart, Meesho, Noon and your own store have different fees, return rates and customer behaviour. One blended ROAS target hides which channel funds the business and which drains it.
Marketplace search is its own discipline
Listings rank on relevance, conversion and sales velocity. Titles, images, A+ content, reviews and in-stock rates matter as much as ad bids, and most brands treat listings as an afterthought.
Your own store is where margin and data live
Marketplace customers belong to the marketplace. Shopify customers belong to you, buy again, and cost nothing to reach by email or WhatsApp. A strong own store protects the business when marketplace fees rise.
Inventory and pricing errors cost more than ads
Overselling leads to cancellations and penalties. Stock-outs kill marketplace rankings. Price mismatches across channels damage trust. Integration is a growth lever, not back-office plumbing.
Why Ads Ninza for E-commerce & Marketplace Growth in Thane
Senior people on your account
Strategy and execution sit with consultants who have 12+ years across IT and marketing. No junior handover after the pitch.
Tracking before spend
Conversion API and server-side events go in first. Platforms can only optimise toward signals they can actually see.
Ads and pages from one team
We build the page the traffic lands on. Campaign and conversion rate are tuned together instead of argued over.
Reporting a CFO can read
ROAS, CAC, contribution margin and pipeline. Impressions and engagement rate stay in the appendix.
We are a performance marketing team based in Kolkata, India, working with clients across India, the USA, the UK, the UAE and Canada. We own the whole path from click to conversion — campaigns, the pages traffic lands on, the tracking that measures it and the search work that reduces your dependence on paid over time — so nobody can hand the conversion problem to a second vendor. Your ad accounts, pixels, analytics properties and creative stay in your name.
How we run it
Economics first, then the store, then the channels, then the ads. In that order, because each step depends on the one before.
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Margin sheet and break-even ROAS
Landed cost, commissions, fulfilment, payment and return costs per product and per channel. From that we set the break-even ROAS and the target ROAS for every channel, and decide which products should be advertised at all.
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Shopify store built or rebuilt
Fast, mobile-first store with product pages built around buyer objections, bundles and AOV mechanics, COD handled properly where relevant, and GA4, server-side tracking and product feeds correct from launch.
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Marketplace setup and listing optimisation
Amazon (India, US, UK, UAE), Flipkart, Meesho, Myntra, Nykaa, Ajio, JioMart, Noon, Walmart Marketplace and Etsy as your category needs. Titles, bullets, images, A+ or enhanced content, keywords, categories and review strategy.
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Inventory, order and price integration
Shopify connected to your marketplaces through the platform connectors or an order management system, so stock, orders and prices stay in sync. Warehouse and fulfilment options, including FBA and Flipkart Assured, assessed per product.
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Full-funnel advertising
Google Shopping and Performance Max with a clean feed, Meta Advantage+ catalogue and creative-led prospecting, Amazon Sponsored Products, Brands and Display, and Flipkart Ads, each run to its own target and reviewed together.
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Retention and reporting
Email and WhatsApp flows for repeat purchase on the own store, and one weekly report by channel: revenue, ad spend, ROAS against break-even, TACoS on marketplaces, and contribution margin.
On guarantees: we do not promise a specific number before seeing your data, because anyone who does is guessing. What we guarantee is the method above, run in that order, with reporting honest enough that you can see for yourself whether it is working.
What the engagement includes
Store
- Shopify design, build or migration
- Product pages, collections and bundles
- Speed and Core Web Vitals optimisation
- GA4, server-side tracking and feeds
Marketplaces
- Amazon, Flipkart, Meesho, Noon and others
- Listing, keyword and A+ content optimisation
- Brand registry and catalogue clean-up
- Review and ratings process
Integration
- Inventory, order and price sync
- Order management system selection
- FBA, Flipkart Assured and fulfilment advice
- Returns and cancellation monitoring
Growth
- Google Shopping and Performance Max
- Meta Advantage+ catalogue and creative
- Amazon and Flipkart advertising
- Email and WhatsApp retention flows
We do not promise a ROAS figure before seeing your margins, because a ROAS target without margins is a guess. What we commit to is a break-even ROAS for every product and channel, advertising managed against it, and weekly reporting in contribution margin so you can see which channels make money. For Miayaa Lifestyle we built a custom Shopify store with custom apps, connected it to Amazon, Flipkart, Google Merchant Center and Meta catalogues, and it has taken 10+ orders every day since week one. For Ethnic Handikrafts, catalogue-led acquisition reached ₹12 lakh in monthly sales from month two. Details are on our case studies page.
Brands our team has driven performance for
Work our consultants have run across agency and in-house roles, alongside the startups and growing businesses that make up most of our client base today.











Read the case studies — Miayaa, Cloud Ninza, Better Intimate, Red Poppy Interiors, Car Ninza, RAP Education and more, with the numbers before and after.
E-commerce & Marketplace Growth — FAQs
What is a good ROAS for e-commerce?
There is no universal number. A good ROAS is one above your break-even ROAS, which depends on gross margin, fees, returns and shipping. A product with a 60 per cent margin can be profitable at 2x; a product with a 25 per cent margin may need 5x or more. We calculate it per product and channel before setting any target.
Do you manage Amazon and Flipkart accounts?
Yes. Listing optimisation, catalogue, A+ or enhanced content, keyword research, review strategy and advertising on Amazon (India, US, UK and UAE) and Flipkart, alongside Meesho, Myntra, Nykaa, Ajio, JioMart, Noon, Walmart Marketplace and Etsy where your category fits.
Can you connect our Shopify store to Amazon and Flipkart?
Yes, so that inventory, orders and prices stay in sync. Depending on catalogue size and order volume we use marketplace connectors or an order management system. The aim is no overselling, no stock-outs that hurt rankings, and one view of inventory.
Should we sell on marketplaces or only on our own store?
Most brands benefit from both. Marketplaces bring demand and trust quickly; your own store brings margin, customer data and repeat purchase. We usually recommend marketplaces for discovery and the own store for retention and higher-margin products, decided product by product.
What is TACoS and why does it matter?
Total Advertising Cost of Sale is ad spend divided by total sales, including organic. Falling TACoS while sales grow means advertising is building organic rank, which is the healthy pattern on Amazon and Flipkart. ACoS alone only tells you about ad-attributed sales.
Do you build Shopify stores from scratch?
Yes, and we also improve existing stores or migrate from WooCommerce and other platforms. A standard build takes four to eight weeks, depending on catalogue size, integrations and how ready product content is.
Do you work with e-commerce brands outside India?
Yes. We run Shopify, Amazon US, UK and UAE, Walmart Marketplace, Noon and Etsy for brands in the USA, UK, UAE and Canada, and help Indian brands sell abroad through Amazon Global Selling and Shopify Markets.
How do you handle cash on delivery and returns?
In India we model COD return rates into break-even ROAS, set COD rules by pincode and order value where it helps, and use confirmation flows on WhatsApp to cut fake and refused orders. Return reasons feed back into product pages and listings.
How long before we see results?
Tracking, listing and feed fixes often show within weeks. Profitable scaling across channels usually takes two to three months, because each channel needs data at the right target before budgets rise.
What does it cost?
Services start at INR 35,000 per month in India and $500 per month outside India; full store builds and multi-marketplace programmes are scoped after a paid discovery call, INR 499 in India and $9 elsewhere. Marketplace commissions and ad spend are paid directly by you.
Talk to us about e-commerce & marketplace growth in Thane.
Nine short steps, then one tap to send it to us on WhatsApp. We use the answers to decide whether we are the right team for you — and to arrive at the discovery call with numbers instead of questions.
Retainers and full-funnel programmes scale from there, scoped after the audit.
45–60 minutes on Google Meet with a senior consultant: your problem, requirement specification and the solution we would recommend.
Apply below, we send the payment link on both, and your slot is confirmed once it is paid.
Your details stay with our consulting team. No lists, no resale, no cold sequences.
Ready to make your spend accountable?
Start with a Growth Audit. We map where your spend, funnel and tracking are losing revenue, then show you what fixing it is worth.