What is the difference between B2B CRM and B2C CRM?

The distinction affects how you model the customer, not just how you sell.

B2B

The customer is a business, and several people are involved in the decision. The sales cycle is long, the value per deal is high, and relationships with individuals are crucial. The data model needs both an account and a contact.

B2C

The customer is the individual. The sales cycle is short, the volume is high, and marketing matters more than personal follow-up. In this case, the account may be unnecessary.

Most are a bit of both

If you sell to both businesses and consumers, you need to make a deliberate choice about how consumer customers are modeled. An inconsistent approach results in customer records that are difficult to report on.