Every CRO reports forecast accuracy to the board. Close to the number is good, off the number is bad, and the metric is universal. It is also incomplete. Accuracy tells you how well you called a quarter after the quarter is over. Survivability tells you, while you can still act, whether the call is resting on one or two events that are quietly carrying the rest.
What forecast accuracy measures
Accuracy grades the calibration of your call after the quarter closes. Did the commit hold, did the best case stretch without breaking. It is useful information, and it is entirely backward-looking. By the time you can measure forecast accuracy, the quarter is over and the trajectory has already held or wobbled.
What forecast survivability measures
Survivability asks a forward question while there is still time to respond: if one load-bearing element of the call is removed, does the rest survive. It surfaces the concentration risk that an accuracy number hides completely. A quarter can be perfectly accurate and still have been one lost deal away from a miss.
When to use which
Use accuracy to grade the forecasting process after the fact: it is the right measure for calibration, for coaching a rep whose calls run consistently hot or cold, and for the number the board expects. Use survivability inside the quarter, on the forecast call, when the question is not how good the call is but what the call is standing on. Accuracy is a report card. Survivability is an inspection. A team that runs only the first finds out it was fragile the same week it finds out it missed.
How survivability is measured
Three removals against the committed number: strip the largest deal, strip the top rep's quarter, strip the deals from your strongest play, and see what is left standing each time. The full method, including the four-step check, the reporting format and a worked example, is on the definition page: what forecast survivability is and how to test it.
Why most teams skip it
Because the answers are uncomfortable. The exercise often reveals that a quarter you called confident is single-deal dependent, and once that is named it has to be addressed. The teams that compound run survivability every quarter, even when the forecast looks healthy. The teams that surge and plateau run it only after they miss.
The full breakdown, including the three removal tests in detail and why the room goes quiet the first time a team runs them honestly, is in What is forecast survivability in a sales forecast?
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