This field will be added if terms apply. This is where you enter another period, in those cases that a pre-calculation applies to a particular period. The current period is set by default. The period entered in this field will determine the throughput time calculation. The period is entered as the "finish period" in a supposed manufacturing order. If you have set a Period condition for the part in the preparation, it will be taken into account here. Read more about how terms and conditions affect this procedure under Alternate Preparations and Pre-Calculations.