1. Marketing Channels: Different channels such as social media, email marketing, and search engine optimization have varying costs and effectiveness. 2. Target Audience: The characteristics of the target audience, such as their demographics and behavior, can impact the cost of acquisition. 3. Sales Process: The complexity and length of the sales process can affect the overall cost. A longer sales cycle usually involves higher costs. 4. Competition: In highly competitive markets, the cost of acquiring customers tends to be higher due to increased bidding on advertising platforms and other costs.