在R12裡Schedule訂單行時，需要自動Reserve Item或者不自動Reserve Item。
具體設定如下：（好多文檔上提到了第1步和第2步，沒有提第3步）
1. 設定Item的Inventory屬性Reservable, Inventory -> Items -> Master Item
2. 設定OM System Parameters -> Values -> Reservation Time Fence
Time(in days). If the schedule date falls within the reservation time fence, we will reserve it at the time of scheduling
If OM: Reservation Time Fence is set to a number greater than zero, then the reservation is created for the item as soon as the order is scheduled, if the schedule date is within the reservation time fence window.
The time fence is thesystem date plus the number of days specified in the profile. For example, if the profile is set to 30 days, then as long as the Schedule Ship Date for the order is within the system date plus 30 days, then reservation is created.
3. 設定Transaction Type -> Shipping -> Scheduling Level.
如果不設定，預設等于“Allow All Scheduling Actions”；如果選擇了No Reservations，即使上面做了設定，也不會自動reserve item.
The scheduling level on the order transaction type determines what type of scheduling is allowed. The possible values for this are:
- ATP Only - You will not be able to schedule or reserve lines on the order. This could be used for Bill-Only or Bill-Only with Inventory Interface flows, or possibly for quoting scenarios.
- No Reservations - You can perform all scheduling functions except for reserving inventory.
- Allow All Scheduling Actions - All scheduling actions can be performed.
- Inactive Demand With Reservations - You can manually enter any schedule date, but the system does not schedule. The line can be reserved. The schedule date is not visible to MRP / APS. This functionality is only for standard items, and it does not support ship or arrival sets.
- Inactive Demand Without Reservations - You can manually enter any schedule date, but the system does not schedule. No reservation can be placed on the line. The schedule date is not visible to MRP/APS. This functionality is only for standard items, and it does not support ship or arrival sets.