Case study · Product design
Teamleader ONE
Designing an approachable e-invoicing product that gives entrepreneurs confidence over their admin and cash flow.
- Role
- Lead Product Designer
- Engagement
- Product design
- Location
- Ghent
- Focus
- UI / UX · E-invoicing
The brief
Bring professional invoicing within reach of every entrepreneur.
Teamleader ONE is built for self-employed professionals and small companies that want to leave Word and Excel behind. The challenge was to make a legally important workflow feel straightforward, even for people with no appetite for business software.
The experience needed to cover the full administrative loop—from customer and product details to quotations, invoices, expenses and accountant handoff—without inheriting the weight of a traditional ERP.
A connected foundation
From first contact to paid invoice, one clear mental model.
Rather than treating invoicing as a standalone form, the product connects the building blocks entrepreneurs already understand: customers, products, quotations and invoices. Information is entered once, carried forward and remains easy to correct.
Financial confidence
Make the status of the business visible at a glance.
Clear totals, due amounts and document states help users see what is paid, open or overdue without digging through screens. The same priorities carry into mobile, so the essentials remain available away from the desk.
Documents that work together
Turn a quotation into an invoice without starting over.
The quotation builder uses the same structure, language and reusable data as invoicing. Templates, company details, customer information and product lines sit where users expect them, making each next step feel familiar.
Reusable business data
Set up the essentials once and keep the workflow moving.
Contacts and products form a lightweight system underneath every document. Focused input, sensible grouping and a consistent history make common admin tasks faster while keeping the details traceable.
Outcome
A focused product for running the financial side of a small business.
Teamleader ONE brings quotations, e-invoices, expenses and financial insights into one coherent experience. The result replaces scattered documents and spreadsheets with a workflow that feels approachable from the first customer to the final payment.