In a spreadsheet, you are the guardrail.
Every rule lives in someone's head: which cells are safe to touch, which file is final, who already said yes. SMH Finance writes those rules into the way the work moves.
The question
In FY27_budget_v7_FINAL.xlsx
In SMH Finance
Who can change the numbers?
Anyone who has the file.
Five roles, from guest to admin, decide who can view, edit or approve.
Which version was approved?
Whichever file says final in its name, probably.
The one marked approved, and then locked.
Who signed off, and what did they say?
Somewhere in an email thread.
The approval history names each person and keeps their note.
Where does revenue come from?
A cell. Maybe a formula, maybe a typed number.
A formula you can read: units sold times average selling price.
How do actuals get in?
Export, paste, check the totals, repeat monthly.
They sync in from SMH Ledger or QuickBooks Online.
What changed this week?
Ask around.
The activity log lists each change to models, budgets, roles and spend.