| The Last Forecast will be the values entered in the most recent previous forecast plan upon which MRP acted.
The Last MRP Plan will be what MRP will be providing as a basis for component and work orders.
The New Forecast is the forecast being entered in the edit mode.
The Maximum Allowed is the last forecast plan modified by the system setup tolerances. If the last FORECAST was for 100 units on the first week, and the tolerance was for 50%, then this line would have the number 150.
The next is calculated similarly, showing the Minimum Allowed. So if the tolerance was 10%, then this line would be 90 units.
The Modified Plan is the New Forecast modified by the constraints of the Maximum and Minimum allowed. In this example, no change is allowed, because of the system setup and the fact that we are in the current period. Notice in the 5th week, these numbers become active as it falls in the next period.
The Carry Over is anything that is not covered by the forecast modified by the tolerances. Thus, if the previous forecast were 200, and the current forecast is for 300, and the tolerance is zero, the forecast could not be changed from 200 to 300, but held constant at 200. But the 100 left over that couldn’t be added to that week of the forecast becomes the carryover to the next week. As long as the tolerance allows it, the next week will be inclusive of the carryover. If it still falls outside the tolerance, it carries over to the following week. It will carryover until it can be absorbed into the forecast based on the tolerances for each period.
The Cumulative carryover is simply adding up any individual carryovers to keep track of the total amount of “catch-up” that is required.
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