Separate the report from the reporting process
The spreadsheet is usually the last step. Before it appears, someone downloads files, fixes names, removes duplicates, applies business rules and asks why a number changed. Automating only the final chart leaves most of the weekly effort untouched.
Write down every definition
Terms such as active customer, completed job and monthly revenue often mean different things to different people. Agree the definition, source and cut-off time for each measure before building a pipeline.
- Source system and owner for each field
- Date and status rules
- How cancellations, credits and duplicates are handled
- Checks that must pass before publishing
Automate with a reconciliation view
The useful outcome is not merely a report that runs. It is a report with a visible last-updated time, input counts, exceptions and enough traceability to explain a surprising number.
That is what lets the team stop keeping a parallel manual version for safety.