The typical starting point
Each store sends a daily sales file in a slightly different format, the online channel exports from another system and the warehouse keeps its own inventory file. None of them talk to each other, so someone spends hours every week making the numbers add up.
How I would build it
I would build a Power Query pipeline that ingests every store file plus the online and warehouse feeds, normalises the columns, deduplicates on the natural key and produces a single star-schema data model. A Power Pivot model on top drives an executive dashboard with store, region and channel slicers and a low-stock alert list.
What it is designed to deliver
The dashboard opens with yesterday's numbers after one refresh. Low-stock items surface the same day, and the weekly meeting starts with the numbers instead of the reconciliation.