What does the affectivity date for a product's price list entry control?

The affectivity date for a product's price list entry in Salesforce Industries CPQ controls whether the product displays in the Products list of the cart. This date defines the period during which a specific price list entry is valid. If the current date falls within the affectivity date range, the product and its associated pricing are considered active and will display in the cart's product list. This helps manage the availability of products for sale based on temporal pricing strategies or promotional periods.