Biggest Technical Challenges in B2B SaaS

Building a B2B SaaS product is often misunderstood as a linear process: write code, deploy, onboard, scale. In practice, most teams encounter complexity much earlier. Long before scale becomes a concern, systems are already under pressure, from inconsistent data, integration demands, and architectural decisions made too early for speed. Contrary to consumer software, B2B SaaS works in environments in which complexity and challenges are not rare, but a default. Every client has unique needs, vari