The E-commerce B2c Mistake That Is Killing Your Profit Margins. bejo 6909 Share The E-commerce B2c Mistake That Is Killing Your Profit Margins. What Are the Differences between B2C and B2B E-Commerce? | Dinarys A Comparative Analysis of B2B vs B2C Ecommerce Read also: Discover The Best CRM When Working With Klaviyo? For Small Teams.