A data warehouse is a central, structured store designed to bring together data from across your business — ERP, CRM, finance, EPOS, websites, marketing, operations — and turn it into something you can confidently report and analyse on.
You typically need one when:
– Different teams quote different numbers because their reports come from different systems.
– Reporting is slow, manual or relies on someone exporting CSVs from multiple tools.
– Your operational systems can’t keep up with complex queries without slowing down.
– You want to enable proper BI dashboards, advanced analytics or AI/ML use cases.
– You’re moving from gut-feel decisions to evidence-based management.
If even one of those resonates, a small, focused data warehouse usually pays back its cost very quickly.