A sales funnel is a visual representation of the customer journey from initial awareness of a product or service to the final purchase. It is a marketing model that describes the steps a potential customer takes to become a customer, and the different touchpoints and interactions they have with a business along the way.

The sales funnel typically includes four stages:

1. Awareness: This is the stage where potential customers become aware of a product or service. At this stage, businesses use marketing channels like social media, content marketing, and advertising to attract attention and generate interest.
   
   
2. Interest: At this stage, potential customers are interested in learning more about the product or service. They may visit a website, read reviews, or request more information. Businesses use this stage to provide more detailed information about the product or service and to begin building a relationship with the customer.
   
   
3. Decision: At this stage, potential customers are weighing the pros and cons of making a purchase. They may compare prices, read customer reviews, or request a free trial. Businesses use this stage to provide additional incentives or offers to encourage the customer to make a purchase.
   
   
4. Action: This is the final stage of the sales funnel, where potential customers become actual customers by making a purchase. Businesses use this stage to provide a seamless and positive experience, and to encourage repeat purchases and customer loyalty.
   

The goal of a sales funnel is to convert potential customers into actual customers by guiding them through the different stages of the customer journey. By understanding the needs and behaviors of potential customers at each stage of the funnel, businesses can optimize their marketing and sales strategies to improve conversion rates and increase revenue.