The product lifecycle consists of four stages: Introduction, Growth, Maturity, and Decline.During the Introduction Stage, companies focus on marketing and distribution to introduce the product to potential customers.In the Growth Stage, sales skyrocket, and companies expand their product lines and marketing campaigns to meet growing demand.The Maturity Stage is a time of stabilization, where sales growth slows and companies focus on cost optimization and diversification.In the Decline Stage, sales and market share shrink, and companies need to manage inventory and make strategic decisions for the future.