This is a nice how to guide to setup the systems to track your customer’s journey through your sales funnel. It is more geared towards SAAS, but still is a good framework for consumer product sales. I have added it as an external resource to Section 2: Systems of my Lean & Agile Framework.
I post what I see and do in consumer products. But I am just one person with my own perspective. I want your opinion and observations from your point of view. Please comment below so I and others can learn. Thank you!