Which of the following is NOT a component of campaign performance measurement?

Session Duration Insights is not a component of campaign performance measurement because it primarily relates to the time a visitor spends on a website or page rather than directly measuring the effectiveness or performance of a marketing campaign. Campaign performance measurement focuses on evaluating specific metrics that demonstrate how well a marketing initiative is achieving its objectives. This includes tracking expenses through campaign budget tracking, examining how quickly responses to the campaign are received via response time analysis, and determining the effectiveness of the campaign through conversion rate evaluation. Each of these components provides critical information about the campaign's performance and helps marketers strategize future efforts. In contrast, session duration, while useful for understanding user engagement on a website, does not directly assess how successful a marketing campaign has been in achieving its goals.