Could you design an intricate KPI dashboard for [company name] that focuses on the performance evaluation of email marketing campaigns during the [specific time period]? Please make sure to include metrics such as open rates, click-through rates, conversion rates, and generated revenue. Also, provide a comparative analysis against the previous [specific time period] to understand the progression or regression. To give a comprehensive view, include individual performance metrics for different email marketing campaigns types we ran during this period, differentiated by their purpose like customer acquisition, retention, re-engagement, newsletters, etc. Additionally, can you integrate a feature to track the performance of the A/B tests we conducted on subject lines, content, CTA, send time, etc.? The dashboard should be interactive with capabilities to drill down data for deeper insights and it should also be able to export data and reports in various formats like PDF, Excel, etc.

What is the best way to visualize the data for [company name] email marketing campaigns to easily identify trends and areas for improvement?

How can we track the effectiveness of our email marketing campaigns in driving sales and revenue for [company name] [courses]?

What metrics should we focus on to determine the ROI of our email marketing campaigns for [company name] [courses]?

Can you recommend any tools or platforms that we can use to automate the tracking and reporting of KPIs for our email marketing campaigns?