tying engagement to ROI is a pretty difficult. It falls into the larger attribution modeling issues that marketers run into. You can try to use affiliate links,

tying engagement to ROI is a pretty difficult. It falls into the larger attribution modeling issues that marketers run into. You can try to use affiliate links, but that can only measure webtraffic/last click conversions. it doesn't do a great job at identifying high assist channels similar to YouTube acquisition.