S SoftSolid
CS-Cart Multi-Vendor

We build the marketplace, you earn the commission

We design, build and run platforms where many independent sellers trade under one roof. We have worked with Multi-Vendor for more than a decade, for clients in eleven countries, and we stay with the project long after launch.

2006

Year the company was founded

50+

Stores and marketplaces deployed

11

Countries where our deployments run

Why Multi-Vendor

Multi-Vendor is software you install on your own server, with open source code. Customer, seller and order data stays with you, and when a feature is missing you add it with an add-on instead of waiting for a SaaS provider to make it a priority.

You buy the licence as a subscription or once and for all, in one of four editions, so the cost does not grow with your turnover the way it does on platforms that take a percentage of every sale. We are an official partner of the vendor and its distributor in Poland, which is why we fit the edition to your business model rather than the other way round.

What we do in a project

You can order each of these stages on its own, but you gain the most when we carry the marketplace from the first conversation to the first seller payout.

Business model and edition

We start by asking who pays whom and for what: commission or seller subscriptions, one shared catalogue or separate offers, one storefront or several under their own domains. The edition and the scope of work follow from the answers.

Platform setup

Seller plans, commissions, product moderation, taxes, shipping and the storefront design. We set everything up on a staging copy first, so you can walk through the whole purchase path before the first customer sees it.

Split payments

The customer's money is split between sellers on the payment gateway side, and your commission stays with you. Multi-Vendor supports this model through Stripe Connect and PayPal, and for the Polish market we have our own Przelewy24 and PayU integrations.

Sellers and compliance

Seller registration and verification, the data you need under the EU Digital Services Act and for tax reporting, and the terms you agree with sellers. We show you what the system covers out of the box and what has to be added.

Migration and integrations

We move products, customers and orders from your current platform and connect the marketplace to the systems you already use every day: Baselinker, couriers, invoicing and automatic catalogue translation.

Custom add-ons

When the built-in features are not enough, we write an add-on for your process. Most of our Multi-Vendor add-on catalogue started out as exactly that kind of commission.

AI assistant

A chat that answers customers from the live offer of every seller, checks orders and splits conversation usage per seller, so you can resell it to them as a paid service.

Care after launch

We update the core and add-ons, watch performance, respond to tickets and develop the platform in further iterations. We have looked after many of the marketplaces listed below for years.

How we work together

  1. 1

    Conversation and analysis

    We learn your business model, market and sellers, and for larger projects we write up a pre-implementation analysis.

  2. 2

    Quote and plan

    You receive the scope of work broken into stages, each with its own price and timeline.

  3. 3

    Build on staging

    We work on a staging copy that you can review at every stage.

  4. 4

    Launch and care

    We move the platform to production and stay with it under a technical care plan.

Marketplaces we have worked on

A selection of Multi-Vendor platforms we built or extended with our add-ons.

Goimagine, Handmade, charity model

United States · Handmade, charity model

Goimagine

A handmade marketplace that donates its entire profit to organisations helping children. Every maker runs their own category tree and their own promotions.

goimagine.com
Agroswiss, Regional produce and farm supplies

Switzerland · Regional produce and farm supplies

Agroswiss

Farm shops, agricultural supplies and trade in one catalogue. A country with four official languages demands multilingual content, so translations are produced automatically with DeepL.

agroswiss.ch
Robazar, Fashion

Romania · Fashion

Robazar

A fashion marketplace with more than forty sellers and two promotion mechanics beyond the core: a free product for every basket value threshold and a discount limited to one category.

robazar.ro
GarageSaleIt, Second-hand goods

Australia · Second-hand goods

GarageSaleIt

A garage sale moved online. Sellers set their password at sign-up, and the number of photos per product is capped so the catalogue does not bloat.

garagesaleit.com.au, no longer online at this address

ebielizna.pl, Lingerie and apparel

Poland · Lingerie and apparel

ebielizna.pl

More than fifty lingerie brands. Orders and stock run through Baselinker, payments through PayU, and DeepL translates the product descriptions.

ebielizna.pl
Targi Rzeczy Ładnych, Design and interiors

Poland · Design and interiors

Targi Rzeczy Ładnych

Polish design from carefully selected designers, each running their own sales, with InPost shipping and PayU payments.

targirzeczyladnych.pl
Edolando, Courses and training

Poland · Courses and training

Edolando

Many authors sell video courses, webinars, ebooks and in-person training here, each running their own promotions.

courses.edolando.com
Market Eden, Natural food

Poland · Natural food

Market Eden

An online market for natural food from Polish producers, with Przelewy24 payments and the price history required by the EU Omnibus Directive.

marketeden.org

An AI assistant for your marketplace

Our assistant knows the offer of every seller, recommends products with the live price, checks order status and can limit the conversation to the seller whose shop the customer is visiting. The operator sees chat usage broken down per seller.

Meet the AI assistant

CS-Cart add-ons

We have more than one hundred and sixty CS-Cart and Multi-Vendor add-ons on the vendor's official marketplace, from seller permissions and seller categories to payment, shipping and invoicing integrations.

Browse the add-ons

Let's talk about your deployment

Book a live demo or send us a question. We reply quickly and to the point.

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office@soft-solid.net · +48 661 661 964

SoftSolid · ul. Sportowa 14, 62-090 Rokietnica

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