Measuring indirect revenue requires a combination of different analytics tools and techniques. Here are some methods:
Attribution models: Use multi-touch attribution models to assign value to different touchpoints in the customer journey. Customer Lifetime Value (CLV): Calculate the CLV to understand the long-term revenue contribution from email subscribers. Engagement metrics: Track metrics like open rates, click-through rates, and website visits to gauge customer interaction. Surveys and feedback: Collect customer feedback to understand how email campaigns influence purchasing decisions.