I understand Reservations are made according to item number and the primary inventory dimensions. However in AX 2009, what is the business logic to determine which lots are reserved? Based on transaction date? For example, the oldest inventory will be reserved first?


The lowest “number” of the batch. The system assumes that you book these in in sequential order numerically, if you do not the suggested one could be a new option. The Process add on in AX2009 picked these on FEFO, standard AX did not.