Analyze Data with SQL: CoolTShirts Marketing Attribution Feedback

I’m seeking feedback on the Analyze Data with SQL marketing attribution insights and code linked below. I’m particularly interested in feedback regarding the recommendation, as I’m curious about how other view the problem. This is my first time posting a project, so any feedback about the format of my post that would make it more accessible and easy to respond to would be helpful. Thanks for your time.

CoolTShirts Presentation

CoolTShirts SQL Code

Mike Wilson