SESAM is a decades-old engineering software suite (first developed in the 1970s) used for advanced structural analysis in the offshore energy and maritime industries. There was a business goal to shift from perpetual licensing to a SaaS model. As the product evolved into a portfolio of 30+ specialised applications, it became increasingly difficult to position and sell. Sales engineers struggled to map the right combination of tools to each customer’s workflow, often taking over six months to become effective. At the same time, customers found the packaging confusing, unsure which bundle of applications they actually needed. This complexity didn’t stop at purchase: once onboarded, users faced a steep learning curve, needing 12–24 months to confidently navigate multiple disconnected tools, each with its own interaction patterns and quirks.