
E-commerce
Marketplace
3d → 6m
Time saved
£1M+
Sale revenue
3weeks
To deliver
ABOUT THE COMPANY
Not On The High Street is a prominent e-commerce marketplace connecting curated partners with customers seeking unique, often personalised products. Partners range from sole traders to large producers, all managing their own product catalogues on the platform.
In 3 weeks we designed and built a tool partners had been asking for years. The results spoke for themselves immediately.
THE CHALLENGE
Each year during seasonal sales events such as Christmas, Valentine's Day, and Easter, partners faced a laborious process to apply discounts across their extensive product catalogues. With some partners managing thousands of products, this process often took days, requiring additional staff and driving up costs.
NOTHS needed a streamlined solution to save partners time and reduce their financial burden, while reaffirming their commitment to improving the partner experience.
Key challenges:
Time - delivering the project rapidly in time for the next seasonal sale
User-centred design - creating a simple interface that works for both large and small partners
Collaboration - working with engineering, product and delivery in a 1 week design sprint
MY APPROACH
Discovery phase:
We ran a design sprint workshop with engineers, a product manager, and delivery manager. Each team member contributed knowledge from their respective role. I interviewed partners directly to understand how they used the sale function and identify their pain points.
Design:
The design was fast and lean, completed in a few days as part of the sprint. I designed a simple interface using existing design system components to reduce development time. The focus was on bulk adding all of a partner's products and specifying the discount percentage for the upcoming sale.
Testing and iteration:
I ran selected partners through the new designs in Figma prototype form. Copy and percentage input changes were made based on their feedback.
One key scoping decision, while the tool would add all products to a sale, removing products individually or in bulk was deemed out of scope for this phase and logged for future iteration.
RESULTS
The designs and preliminary work were completed within the first week. Minor iterations followed in weeks two and three. Once launched and announced to partners, adoption was immediate.
Key outcomes:
One of our largest partners reduced their time to add products from 3 days (27 hours) of manual work to just 6 minutes
As awareness grew, more partners switched to the tool, significantly increasing participation in seasonal sales
The tool contributed to a record-breaking summer sale generating £1M+ in revenue
WHAT I LEARNED
This project proved that lean, focused design sprints can deliver enormous value quickly. By keeping the scope tight and working collaboratively across engineering, product and delivery, we shipped something meaningful in three weeks that partners had been requesting for years.
The biggest lesson was the importance of scoping ruthlessly. Keeping "remove from sale" out of scope allowed us to ship on time and prove the concept, creating the business case to build the full feature set in a future phase.



Ready to work together?
Available for remote contracts, fractional roles, and advisory work.


