The product with no UI
Iteration and user testing
Designing transactional emails that explain complex financial adjustments
When suppliers get paid early on invoices that are still open for amendments at the buyer end, things get complicated. Cancellations, disputes, and corrections can happen after money has already moved. The challenge: explain these reconciliations clearly to suppliers without building a portal—purely through email. This case study documents the iterative process of designing those communications, from spreadsheet sketches through user testing to shipped templates.
