Cost per engagement (CPE) is a key metric used in digital marketing to measure the effectiveness of an advertising campaign. It refers to the amount of money spent on a specific marketing initiative divided by the total number of engagements generated as a result of that campaign. Engagements can include a variety of actions such as clicks, likes, shares, comments, and other interactions with the content.Calculating the cost per engagement allows marketers to evaluate the efficiency of their campaigns and determine the return on investment (ROI) for each engagement. By comparing the CPE across different campaigns, marketers can identify which strategies are most effective in driving user engagement and adjust their marketing efforts accordingly.In order to improve the cost per engagement, marketers can focus on creating compelling and relevant content, targeting the right audience, and optimizing their advertising campaigns for maximum engagement. By continuously monitoring and analyzing the CPE, marketers can make data-driven decisions to optimize their marketing strategies and achieve better results.Overall, cost per engagement is a valuable metric for measuring the success of digital marketing campaigns and maximizing the impact of advertising efforts. By understanding and optimizing CPE, marketers can drive meaningful engagement with their target audience and ultimately achieve their marketing goals.