Create an Opportunities Excel Table with OpportunityID, Account, Owner, Stage, ValueGBP, CreatedDate, ExpectedCloseDate, ClosedDate, NextAction, NextActionDate, LastUpdated, and ReviewReason. Use controlled lists for Owner/Stage and validation that closed stages require ClosedDate while open stages require NextActionDate.
Add WeekCreated, WeekExpectedClose, and WeekClosed helper columns using each distinct date. OverdueFollowUp: =AND(NOT(OR([@Stage]="Won",[@Stage]="Lost")),[@NextActionDate]<TODAY()). Keep TODAY-based flags separate from historical snapshots.
Weekly summary: WonRevenue = SUMIFS(ValueGBP,Stage,"Won",ClosedDate,week bounds); WonCount = COUNTIFS using the same rules; CurrentOpenPipeline = sum open opportunity values with expected close in the selected four-week horizon; Coverage = CurrentOpenPipeline / four-week target. A PivotTable shows Owner rows and Stage columns for current pipeline; another uses WeekClosed for Won/Lost outcomes. Never sum weekly snapshots of current pipeline. Friday review: uniqueness, missing required dates, stale updates, overdue actions, target gap, large-value changes, and source-to-summary reconciliation.