Analysis of the IPA Databank finds budget is eight times more important than ROI when it comes to driving effectiveness.
EssenceMediacom was incumbent on media, while IPG's MullenLowe held creative duties in Europe, alongside Omnicom's BBDO in the US.
McCann Worldgroup has worked with the brand for two decades.
Latest results reveal uneven performance across regions, with Asia-Pacific facing challenges amid shifting client priorities and global cutbacks.
First set of results since Havas was spun off from Vivendi.
Fraudsters used AI in Microsoft Teams meeting with the 'agency leader'.
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