Rewriting the Metrics that Matter: ROI, ROAS, iROAS and Incrementally

14 May 2026
2. Impact & Performance
Instead of talking about measurement, this panel will get into the detail of what to do and how to do from both the brand and retailer perspective. It will bypass the usual bland conversation to talk about measurement in the context of sophisticated commercial partnership.
Moderator
Marie-Clare Puffett
Marie-Clare Puffett, Industry Development & Insights Director - IAB EUROPE
Speakers
Lisa Whittlestone
Lisa Whittlestone, Head of Retail Media - PEPSICO
Jason Wescott
Jason Wescott, Global Head of Commerce Solutions - WPP MEDIA