The marketing funnel helps in defining KPIs for different stages of a marketing campaign.

The marketing funnel, typically encompassing stages like Awareness, Consideration, and Conversion, directly informs KPI (Key Performance Indicator) selection. Each stage has distinct goals, and therefore, different metrics are relevant. For example, in the Awareness stage, KPIs might include reach, impressions, or brand mentions. In the Consideration stage, engagement rates, website traffic, or content downloads are more appropriate. Finally, for the Conversion stage, sales, leads generated, or sign-ups are key. Without understanding the funnel stage, it's difficult to define meaningful and actionable KPIs. Therefore, the statement is true.