Because the forecast is a number said in a meeting. When the quarter misses, the conversation is about the quarter, never about the fact that the same person has been 20% optimistic for six of them.
A submission is a commitment a person makes for a period — a number, a date and the deals behind it — stored immutably and compared with the actual outcome when the period closes.
Each submission is kept as made, with its supporting deals. When the period closes the actual is recorded beside it, and a person's or team's history of accuracy becomes a report rather than an impression.
One manager's submissions came in a consistent 18% high across five quarters; another's were within 4%. Applying the first manager's own historical bias to their current number was more accurate than the number itself.
It measures accuracy; it does not create it. Knowing a person is habitually optimistic is useful to a forecast, and it is a management conversation rather than a calculation.
Weighted forecasting supplies the system's view to compare against, goal tracking measures both against target, and Books reconciles closed revenue with what was committed.
Not once made. A revision is a new submission, and both are kept.
Whatever your rhythm is. Weekly and monthly are both common; the value is in the comparison, not the frequency.
Yes, and against the actual. The gap between all three is the interesting part.
Fourteen days, every module, no card. Or half an hour with someone who will run it on your own records and tell you where it does not help.