Fashion Marketplace Development

Why fashion marketplaces need purpose-built software

Generic marketplace platforms handle the common case: one product, one seller, one fulfilment address. Fashion adds complexity at every layer. A single style has multiple size and colour variants tracked at the SKU level, stock levels change as sizes sell, and a buyer searching for a size 10 dress needs to see only results where a size 10 is in stock across all vendors simultaneously. Returns go back to the individual vendor, not a central warehouse, and each vendor's policy may differ from the next.

  • Multi-brand vendor onboarding with inventory management per seller

  • Unified checkout with split payment and vendor payout

  • Size and variant search with real-time stock filtering

  • Returns handling with per-vendor policy configuration

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See our work

The problem

Sound familiar?

  • Fashion marketplace where each vendor manages their own stock levels outside the platform and manually updates listings when items sell out?

  • Returns policy that differs by vendor but the platform has a single returns flow, creating disputes every time a buyer returns an item?

Short answer

RaftLabs builds custom fashion marketplaces with multi-brand vendor onboarding, per-vendor size run and inventory management, unified checkout with split payments and automated vendor payouts, buyer-facing search with size and style filters, and returns handling that respects each vendor's policy. Most fashion marketplace projects ship in 12 to 16 weeks at a fixed cost.

Key takeaways

  • Size-filtered search queries live stock counts per size across every vendor simultaneously, so a buyer never sees a style where their size is actually sold out.
  • Each vendor configures their own return policy (window, reasons, exchange availability), applied automatically at the point a buyer initiates a return.
  • Refunds process per vendor order, so a return of one vendor's item never delays the refund for another vendor's item in the same basket.
  • A full marketplace (onboarding, size run inventory, split payments, search, returns) runs $40,000-$100,000; a focused build runs $20,000-$55,000.

Trusted by

Vodafone logo
Aldi logo
Nike logo
Microsoft logo
Heineken logo
Cisco logo
Calorgas logo
Energia Rewards logo

Fashion marketplace delivery, by the numbers

software products shipped
100+
cost delivery
Fixed
week delivery cycles
10-14
industries served
24+

Why fashion marketplaces need purpose-built software

A custom fashion marketplace models size run complexity, per-vendor returns, and size-filtered search directly, so the platform handles the complexity rather than the operations team.

Capabilities

What we build

  • 01
    Vendor onboarding and profile management

    A self-serve application flow with verification and policy configuration per vendor, plus performance metrics (fulfilment rate, return rate, rating) visible to the operator.

  • 02
    Size run and inventory management per vendor

    Each vendor manages their own stock per size per style, decremented in real time on sale, with low-stock alerts and operator-level visibility across the full catalogue.

  • 03
    Unified checkout and split payments

    A single checkout splits into per-vendor orders with automated commission deduction, scheduled payouts, and a holding period covering return windows.

    Built with
    Stripe Connect
  • 04
    Buyer search and discovery

    Size, brand, and style filters apply against live inventory across all vendors simultaneously, with fashion-specific relevance ranking beyond exact keyword match.

  • 05
    Returns and dispute management

    Per-vendor policy displays on every product page, returns route to the correct vendor automatically, and an operator override resolves non-responsive vendor disputes.

  • 06
    Vendor analytics and payout reporting

    Sell-through and return rate by style and size give vendors stocking signals, while operator-level analytics surface top-performing vendors by GMV and rating.

How we work

From scope to live marketplace

  1. Week 1
    01

    Vendor model scoping

    We map your vendor structure, commission model, and current manual workarounds. You leave week 1 with a written scope document and a fixed-price quote.

  2. Weeks 2-5
    02

    Inventory and payout design

    Size run data model and split payment logic designed against your actual vendor agreements.

  3. Weeks 6-13
    03

    Build and integrate

    Vendor portal, search, and Stripe Connect payouts built in parallel, tested against real order scenarios.

  4. Final 2-3 weeks
    04

    Launch and vendor onboarding

    Vendors onboarded to Stripe Connect and trained on the dashboard before full rollout.

Why us

Why fashion marketplace operators choose RaftLabs

  • 01
    Senior engineers build what they scope

    The engineers who assess your vendor model also build the solution. No bait-and-switch, no offshore handoff after the contract is signed.

  • 02
    Fixed price before development starts

    We scope the work, calculate the cost, and lock it in writing before any development starts.

  • 03
    9 years and 100+ products shipped

    Clients include Vodafone, T-Mobile, Aldi, Nike, Cisco, and Lockheed Martin. Track record building marketplace and split-payment platforms.

  • 04
    Size filters that actually mean in stock

    Live stock queries per size eliminate the sold-out-size frustration generic marketplaces create.

  • 05
    Vendor disputes resolved without operator guesswork

    An override workflow handles non-responsive vendors without leaving buyers stuck.

Have a fashion marketplace project?

Tell us your vendor model, your commission structure, and where your current setup breaks down. We'll scope the build and give you a fixed cost.

Talk about your fashion marketplace project

Related services

Fashion Marketplace Development, scoped in one call.

Tell us what's broken. Within one business day you get a straight take on cost, timeline, and the right first step. No deck, no pressure.

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Frequently asked questions

Fashion adds size run complexity at the inventory layer, per-vendor return policies at the operations layer, and size-filtered search at the discovery layer. When a buyer filters by size, the platform needs to query live stock counts per size across every vendor simultaneously, not a cached product list.

Each vendor manages their own inventory inside the marketplace platform. When a sale occurs, the platform decrements the stock count for the specific size and colour variant sold and updates availability across all search surfaces in real time. For vendors with an existing inventory system, we build a sync integration.

Each vendor configures their return window, accepted reasons, and exchange availability in the platform. When a buyer initiates a return, the platform applies the correct vendor's rules automatically, and refunds process per vendor order so one vendor's return doesn't delay another's.

A full marketplace covering vendor onboarding, per-vendor size run inventory, unified checkout with split payments, size-filtered search, and per-vendor returns handling typically runs $40,000 to $100,000. A more focused build runs $20,000 to $55,000.

Work with us

Tell us what you need. We'll tell you what it would take.

We scope Fashion Marketplace Development in 30 minutes. You walk away with a clear cost, timeline, and approach. No commitment required.

  • Scope and cost agreed before work starts. No surprises. No obligation.
  • Working prototype within 3 weeks of kickoff.
  • Pay by milestone. You see progress before each invoice.
  • 60-day post-launch warranty. Bug fixes, UI tweaks, and deployment support. No retainer.
  • All conversations are NDA-protected.

Go deeper

Browse our case studies

Fashion software by area