This document briefs the usage of Forecast based planning with yearly lot size and generating single purchase requsition for forecasted requirements against the consumption for year.
Introduction:
Forecast based planning is based on material consumption.It operates based on historical values and forecast values and future requirements are determined via the integrated forecasting program. Forecasted values form basis for planning run and have direct effect in MRP as forecast requirements.
Scenario 1:
Forecast based planning will generate monthly forecast values based on past one year consumption. System should consider the entire one year forecast values and generate only one purchase requsition after MRP run.
Approach:
Based on year consumption system will automatically generate the 12 months forecasted values upon executing the forecast. If we consider lot size as EX system will plan purchase requsitions individually for each forecasted values. Since 12 months values are forecasted then system will generate 12 purchase requsitions. Lot size plays crucial role in consolidating the entire requirements.
This type of requirement to be addressed by configuring new lot size with number of periods as 12,maintain forecasting periods as 12 months an executing the forecast. System will plan forecast values for 12 months but upon MRP run purchase requsition will be generated only ONE with entire forecasted values quantity.