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Glossary

Forecast bridge

The decomposition of the difference between a run rate, or the prior forecast, and the current forecast into named components: new deals, expansion, slipped, pushed, lost.

DefinitionThe decomposition of the difference between a run rate, or the prior forecast, and the current forecast into named components: new deals, expansion, slipped, pushed, lost.

How it is built

Take every deal in the pipeline history with its stage, close date and value at two points in time. Classify the change: new since the prior snapshot, moved in from a later period, moved out to a later period, closed, lost, resized. Sum each class. The classes bridge the two totals exactly.

Why it matters

"Q4 is $1.4m above run rate" is a claim. "Three deals explain $1.1m of it, all pushed from Q3, all having slipped twice already" is a bridge, and it tells the CFO what to believe.

Needs history

A bridge needs stage history, not a snapshot. Two quarters of history gives a bridge; two years gives slip patterns by rep.

How it is computed

Starting from the prior forecast or the run rate, named lines add and subtract to reach the current forecast: deals won, lost, slipped out, pulled in, resized, and new. The lines sum exactly to the difference.

Example

Last month's forecast was $13.3 million. Won early plus $0.2 million, slipped out minus $0.7 million, lost minus $0.3 million, new deals plus $0.4 million. This month's forecast: $12.9 million.

Where it goes wrong

A forecast that changes with no explanation of which deals moved. Trust in the number goes with it.