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Home Case Studies UDB Marketplace — Multi-Vendor Shop

UDB Marketplace — Multi-Vendor Shop

An integrated multi-vendor marketplace inside the UDB app — product catalogs, shopping cart, orders, reviews, and subscription-based seller onboarding.

UDB Association Non-profit / Community 14 Weeks End-to-end vendor onboarding
Project Overview

We partnered with UDB Association to build a multi-vendor marketplace inside their community app — catalogs, carts, orders, reviews, and seller onboarding.

The result was an end-to-end shop experience where members buy from verified vendors without leaving the association platform.

Client
UDB Association
Industry
Non-profit / Community
Timeline
14 Weeks
Budget Range
Custom Quote
The Challenge

What We Were Up Against

No In-App Commerce

Members had no way to discover association vendors or purchase products within the community app.

Uncontrolled Seller Access

Opening a marketplace without verification risked unvetted vendors joining the community storefront.

Incomplete Purchase Journey

Browsing alone was not enough — cart, wishlist, orders, and reviews had to work as one flow.

The Solution

How We Solved It

Multi-Vendor Marketplace

We built category catalogs, shop listings, product detail pages, cart, wishlist, orders, and reviews.

Subscription Seller Onboarding

Vendors upgrade via Basic, Premium, or Enterprise plans with Stripe, Google Pay, and card payments.

Admin Vendor Approval

After payment, sellers wait for admin approval before going live — keeping the marketplace trusted.

Build Timeline

How We Built It — Week by Week

Week 1-2

Discovery & Planning

Marketplace requirements, vendor journey mapping, and checkout flow design.

Week 3-11

Development

Shop modules, cart/orders, subscription checkout, and approval workflow.

Week 12-14

Launch

Payment QA, vendor dry-runs, staged rollout, and go-live.

Technology Stack

Built With the Best Tools

Mobile

Flutter

Commerce

Multi-vendor

Payments

Stripe
Google Pay

API

REST API
Results

The Numbers Don't Lie

3
Vendor Plan Tiers
Basic, Premium, Enterprise
6+
Commerce Modules
Catalog, cart, checkout, orders, reviews

Before DigiWapp

No in-app product catalog or multi-vendor shops
No controlled path from member to verified seller

After DigiWapp

Full marketplace with cart, wishlist, orders, and reviews
Subscription-to-approval vendor onboarding live
Client Testimonial
"Our members can shop from trusted association vendors without leaving the app, and sellers have a clear path to get approved."
U
UDB Association Team
Client Stakeholder
via Clutch
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