Maddie Lightening, head of paid media at Hallam, joined me to talk through the mistakes, lessons and mindset shifts that have shaped her career in PPC. With more than a decade of experience across search, social, programmatic, digital out of home and ABM, she shared a candid look at the realities of leading paid media in a fast-moving industry. The reporting mistake that doubled performance One of Maddie’s early mistakes involved misreporting performance due to account currency differences. Working with an Australian billing setup while reporting in GBP, she unknowingly halved the reported results because conversion values were being translated. The issue only surfaced after comparing platform data with CRM figures, revealing that performance was actually twice as strong as reported, highlighting how easily technical setup details can skew results. When legacy account structure becomes a problem A more complex challenge came from a travel client running an outdated, highly granular account structure with thousands of campaigns. While this “2016-style” setup had previously worked, it clashed with modern AI-driven bidding and data consolidation approaches, making it harder to optimize performance and diagnose issues when results began to decline. Why timing matters as much as strategy Maddie explained that although the team had planned to restructure the account, they delayed it to avoid disrupting peak season. When performance dropped in January, they were forced to make multiple changes quickly, which increased pressure and complexity. In hindsight, starting the restructure earlier would likely have reduced risk, showing that delaying necessary changes can…
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