The most common challenges faced by SaaS startups include lack of industry-specific knowledge and experience, developing a scalable and reliable infrastructure, product positioning, and an impractical pricing model. SaaS startups need to gather substantial knowledge and expertise before starting any business and may struggle to grasp the intricacies of the SaaS market. Developing a scalable and reliable infrastructure that can handle increased demand as the business grows requires careful planning and investment in technology. Correct product positioning is crucial for the success of SaaS applications, and SaaS businesses need to know how they want their target market to feel about the solution. An impractical pricing model is also a common challenge for SaaS businesses, as most operate on a subscription-based pricing model which can create some SaaS subscription billing challenges. To overcome these challenges, SaaS startups need to invest in technology, conduct market research, and gather industry-specific knowledge and expertise. They also need to carefully plan their pricing strategy and focus on developing a scalable and reliable infrastructure that can handle increased demand as the business grows.