Automated Marketplace Liquidation Platform Development

100% Workflow Efficiency Achieved with an End-to-End Marketplace Liquidation Platform

A U.S.-based e-commerce company needed to turn surplus and returned Amazon and Walmart inventory into a scalable, repeatable revenue stream. We built an end-to-end automated liquidation platform with direct marketplace integrations, eliminating manual sourcing, pricing, approvals, and logistics—unlocking a fully scalable liquidation business model with 100% workflow efficiency.

E-commerce

Web and mobile development

Business process automation

System Integrations Completed

100

Efficiency Improvement Achieved

The client is a US-based company working with Amazon and Walmart sellers across the United States and Canada. The project focused on launching a new business model for monetizing residual marketplace inventory by automating the sourcing, approval, and resale of surplus and returned goods through the client’s own distribution channels.

Django

Apache Kafka

Apache Airflow

PostgreSQL

Amazon & Walmart Marketplace APIs

THE CHALLENGE

The manual marketplace liquidation process required a dedicated platform to enable full automation.

The client set out to launch a new model for liquidating surplus and returned inventory from Amazon and Walmart sellers. Their existing approach relied on manual product discovery, direct seller communication, and one-off negotiations, making it slow, costly, and impossible to scale. To move forward, they needed a centralized, scalable platform capable of automating sourcing, pricing, approvals, and logistics end to end.

Complex Integration with Amazon & Walmart Marketplaces

To enable automated liquidation, the system needed deep integration with Amazon and Walmart ecosystems. This included accessing product data, tracking inventory availability, supporting automated pricing, and triggering warehouse pickup workflows—none of which were possible with the client’s existing manual processes.

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Lack of a Unified UI to Support the Business Workflow

There was no centralized interface for sellers to submit inventory or for the client to review, approve, and manage liquidation deals. Existing workflows relied on emails and spreadsheets, creating delays, inconsistencies, and operational risk.

Automate end-to-end workflows with complex integrations in a 4-week PoC

THE SOLUTION

An Automated Platform for Marketplace Inventory Liquidation

We built an automated platform that enables Amazon and Walmart sellers to liquidate surplus and returned inventory without manual coordination, while giving the client full control over sourcing, pricing, approvals, and logistics.

The platform replaces manual seller outreach and negotiations with a continuous, automation-driven process. Sellers independently submit inventory for liquidation, and once eligible products become available, the system automatically proposes pricing, validates product data, and executes the buyout workflow. Inventory pickup from Amazon and Walmart warehouses is organized automatically, without human intervention.

Marketplace API Integration for Automated Buyouts

We implemented API-based integrations with Amazon and Walmart to automate product data ingestion, availability checks, and buyout workflows. The system continuously monitors inventory updates and enables automatic purchasing as soon as eligible products become available, eliminating the need for manual coordination.

Unified Platform UI for Seller Self-Service and Deal Control

We built a dedicated user interface based on Django Admin to support the full liquidation workflow. Sellers can independently submit surplus inventory for liquidation, while the client can review offers, manage approvals, and oversee execution from a single platform. The UI acts as the control layer for automated pricing, sourcing, and logistics operations.

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THE RESULT

From Manual Liquidation to a Scalable, Automated Operation

The client received a fully automated liquidation platform that handles inventory sourcing, availability validation, pricing, approvals, and warehouse pickups for Amazon and Walmart sellers—end to end, without manual coordination.
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This platform allows the client to liquidate surplus and returned inventory at scale, launch a new revenue model without increasing operational headcount, and eliminate manual seller outreach and deal negotiations entirely. By automating the full workflow and integrating directly with marketplace APIs, the client gained real-time inventory visibility, faster deal execution, and consistent, repeatable operations.

System Integrations Completed (Amazon & Walmart marketplaces)

100%

Efficiency Improvement Achieved through end-to-end automation

Automated Marketplace Liquidation Platform Development

Steps of providing web applications services

Step 1 of 7

Web development discovery

In the initial stage of the web-based development project, professional business analysts make detailed documentation of the project requirements and the approximate structure of the future web application. DATAFOREST is a custom web application development agency, guided by extensive experience in multiple industries. We give you detailed project documentation and then assemble the team according to your time and budget.

Step 2 of 7

UX and UI design

Based on your wishes, the needs of your target audience, and the best web application design and development practices, our UX and UI experts create an aesthetically pleasing and user-friendly interface for your app to satisfy even the most demanding users.

Step 3 of 7

Web-based application development

At DATAFOREST we are following the best programming design principles and approaches. Being a data engineering company, we build high load platforms, with a significant level of flexibility and result orientation. We keep our deadlines and follow SOC 2 compliance requirements.

Step 4 of 7

Integration

With DATAFOREST, integrating the application into your business won’t stop your processes for a minute. We provide seamless integration with your software infrastructure and ensure smooth operation in no time.

Step 5 of 7

Quality assurance

We use a multi-level quality assurance system to avoid any unforeseen issues. Working with DATAFOREST, you can be confident that your web app development service solutions arrive to the market polished and in full compliance with all certification requirements.

Step 6 of 7

24/7 support

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Step 7 of 7

Web app continuous improvement

Every truly high-quality software product has to constantly evolve to keep up with the times. We understand this, and therefore we provide services for updating and refining our software, as well as introducing new features to meet the growing needs of your business and target audience.

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