What must be true for a product to be added to a customer's cart during a live session?

For a product to be added to a customer's cart during a live session, it is essential that the product must have a valid price. This means that the product is properly configured in the system with a defined pricing structure that customers can understand and rely on for their purchasing decisions. Without a valid price, the system cannot process the transaction, as pricing is crucial for completing the sale.

In the context of a sales platform, having a valid price not only facilitates the transaction but also ensures transparency and avoids confusion for the customer regarding the cost of the product. If a product lacks a valid price, it cannot be effectively sold or added to a cart, as the customer will be unable to understand the total cost they would be agreeing to pay. Therefore, a valid price is a fundamental requirement for the addition of any product to a customer's cart during a live session.