'Need Dates' - MRP Scheduling Hi, I don't fully understand the date logic in the time-phased supply proposals created by IFS for an end-item (in an engineer-to-order setting). Can you outline the key types of dates (or 'offsetting inputs') that figure within scheduling. From specifying when the user desires said item, to all the subsequent dates that are generated after BoM explosion. The 'tools' at are disposal are IFS Apps 10, namely, MRP that executes 'Infinite Scheduler' and 'APB' (our method to CBS schedule items to reflect 'live' capacity constraints such as the current load at a given work centre). I'll provide a brief description of our current practice and raise questions alongside that. If there's any misuse, do say so. Overview: A 'Required Date' is specified when demand is created, used to say when project 'X' is desired. Does this input need to be constrained by a lead time, whether plausible or not? For instance, can you specify the Required Date for X as 1/1/15? I'm not asking whether the system has