Best Buy Marketplace Seller Portal
Designing a 0–1 seller platform that powered Best Buy’s Marketplace launch and seller ecosystem.
March - April 2025
Problem
As Best Buy prepared to launch its new Marketplace in July 2025, there was no seller-facing portal to support incoming third-party sellers. This meant sellers lacked a centralized way to access the tools and resources required to manage and grow their business.
Solution
The net-new seller portal gave Marketplace sellers a single, reliable place to access critical resources such as performance reports, learning materials, support, store management, and advertising tools. The new platform introduced robust foundations, including modular page structures, guided workflows, and smart validation that enabled Best Buy to onboard sellers of all sizes and scale the Marketplace long-term.
My Role
As one of the first UX designers assigned to this 0–1 Marketplace initiative, I played a pivotal role in defining the platform’s foundational workflows. One of my most impactful contributions was partnering with the research team to gather seller insights and use that feedback to establish the information hierarchy across the portal. This included mapping how features such as onboarding through a third-party user management system and the advertising campaign management tool should be organized so they were intuitive and easily accessible while being aligned with internal technical and operational constraints.
My work spanned UX strategy, user research, extensive sketching and wireframing, and rapid prototyping to bring the vision for the seller portal to life.
The Result
The new portal established the core UX foundation for Marketplace expansion, launching with 400+ initial sellers and now supporting hundreds more. Early usage showed high engagement across key workflows, strong adoption of catalog tools, and faster paths for sellers to publish products on the platform. These designs created a scalable framework that continues to support Marketplace growth through iterative releases. I’d be happy to share more about the problem space, my design approach, and the full outcomes during an interview.
