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Ecommerce & Retail · Marketplace Operations

Seller Management Platform

We built a central platform to automate seller onboarding, compliance, and product catalog synchronization for a multi-vendor ecommerce service.

Seller Management Platform
Focus
CUSTOM-WEB-APP, THIRD-PARTY-INTEGRATION, INTERNAL-TOOLS
Delivered
17 Nov 2023
Location
Pakistan

Outcome

Seller onboarding cut from 10 days to 6; approved catalogues sync to channels via Linnworks.

The Vision & Challenge

A B2B ecommerce services provider built its business on aggregating products from independent sellers and distributing them across major online sales channels. Their model depends on volume and quality, curating vast catalogs while maintaining strict standards for every partner on their platform.

As the company grew, its manual processes became a serious liability. Onboarding sellers, verifying legal documents, approving product lines, and managing fulfillment was an inefficient, multi-step process handled by internal administrators. This operational drag limited how quickly they could add new sellers and introduced a constant risk of human error.

Our team was brought in to design and build a central operations hub. The objective was to create a single, authoritative system to manage the entire seller lifecycle, enforcing business rules automatically and giving administrators the tools they needed to focus on quality control, not paperwork.

The challenge

  • The existing manual workflow for seller onboarding and verification was inconsistent, leading to compliance risks and delays.
  • Product data from sellers was fragmented and required manual entry into distribution systems, creating a high risk of error and inventory mismatches.
  • Internal teams and sellers lacked a centralized way to track status or receive timely alerts, causing bottlenecks in product approvals and order fulfillment.

How we solved it

  • We developed a multi-step, role-based workflow. Sellers are guided through a mandatory process of document submission, while Admins and Officers have specific dashboards to review, approve, or reject applications.
  • An integration with the Linnworks API was built to act as the master system for product data. Once a seller’s catalog is approved, it automatically synchronizes, ensuring data integrity before being pushed to sales channels.
  • A custom notification engine was implemented to send automated alerts for key events. This system informs admins of new registrations, notifies sellers of product status changes, and warns of fulfillment issues.
Seller onboarding across three lanes. The seller applies, agreeing to terms and submitting signed legal documents through a mandatory sequence with no step skippable. An officer verifies those documents, and rejections are recorded rather than handled in email. An administrator approves the product catalogue, which is the last human gate. Only then does the catalogue synchronise to Linnworks and out to the sales channels, so an unapproved product cannot be listed and every decision leaves an audit trail.

Technologies

What we built it with

Front-end
  • JavaScript
  • HTML5
  • CSS3
Back-end
  • PHP
  • Laravel
DevOps
  • Linux
  • Github CI
  • Digital Ocean
Database
  • MySQL
Integrations
  • Shopify
  • Linnworks
Project screen

Guided Compliance Workflow

The platform enforces a strict, multi-stage process for all new sellers. Each applicant must complete a series of steps, from agreeing to terms to submitting signed legal documents. The system then routes the application to internal Admins and Officers for sequential review and approval, which brought onboarding down from 10 days to 6. This removes ambiguity from the process, ensures every partner is fully compliant before their account is activated, and creates a clear audit trail for every decision.

Centralized Catalog Management

We connected the platform directly to the partner's Linnworks and Shopify accounts. When an administrator approves a seller's products within the tool, that data is programmatically sent to the appropriate external systems. This removes the need for manual data entry, prevents incorrect or unapproved items from being listed, and ensures inventory information is consistent across all sales channels. It is the bridge between internal quality control and external commerce.

How we built it

Made document approval a sequential, role-owned workflow, and let Linnworks be the master for product data. Inconsistent manual onboarding was both a compliance risk and a delay. Sellers now move through a mandatory document sequence, and admins and officers each have a dashboard for the reviews that belong to them, which cut onboarding from ten days to six. Approved catalogues sync automatically to Linnworks, the master system, before reaching any sales channel, so inventory mismatches from re-keying disappear. A notification engine tells admins about new registrations, sellers about status changes and everyone about fulfilment problems before they become tickets.

In the client's words

“Ten days to onboard a seller, now six. The Linnworks sync was the part I did not expect to work first time.”

NDA - Signed

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