Why Reporting Is the Hardest Problem in Enterprise SaaS (And How We Solved It in Workday)

Reporting is often the most challenging problem in enterprise SaaS applications . It might seem surprising — after all, modern SaaS systems handle complex transactions, workflows, and integrations. Yet when it comes to extracting meaningful insights from all that data, many companies struggle. Instead of clarity, they end up with a patchwork of tools, conflicting numbers, and “final_final_v3.xlsx” files flying over email. In my experience as a Workday enterprise architect, I’ve seen that reporting isn’t just a feature — it’s the endgame where all the hard problems of data and scale come home to roost. This article explores why reporting is so hard in enterprise SaaS and how we tackled it in Workday’s architecture.