Case Study: a UK-based home appliances seller cuts TACOS by 47% with Quartile

UK-based Home Appliances Seller cuts TACOS by 47% in 3 weeks with Quartile

A UK-based home appliances seller was struggling with an unsustainable Total Advertising Cost of Sale (TACOS) and sales that were 15% below forecast. The root issue was a lack of control, as a single efficiency target was applied across its diverse catalog of 700 ASINs, causing inefficient campaigns to consume budget without returns. To regain efficiency and sales momentum, they partnered with Quartile for its Amazon advertising optimization services.

Quartile implemented a structured, conversion-focused framework using Sponsored Products. They segmented campaigns by product type, assigned individual efficiency targets, paused underperforming campaigns, and dynamically allocated spend based on performance signals. As a result, the seller achieved a 47% reduction in TACOS and a 57% decrease in ACOS within three weeks, restoring profitability and closing the sales gap without requiring additional ad spend.