A funnel template is a tool that helps marketers to create a process for their marketing campaigns. It is used to build a website or app with the right set of features and functionalities that are most likely to attract visitors and lead them through the funnel. The three stages of funnel are awareness, interest, and action. The 4 stages of funnel are awareness, interest, consideration, and purchase. The 5 stages of funnel are awareness, interest, consideration, purchase, and retention.