Dynamic Open to Delivery Date Adjustment 
The system automatically calculates the Open-to-Delivery (OTD) window for an order allocation run (ARun). All open schedule lines with delivery dates that fall in this window and that match the selection criteria are automatically included in the allocation run. You can specify exactly how the system determines this date for an order.
Activities
You can either enter the start and end dates manually in the Open-to-Delivery date range fields for sales orders, stock transport orders (STOs), or future receipts in the respective requirement and future receipts tabs of the allocation run, or allow the system to calculate them automatically. The Open-to-Delivery date for sales orders and STOs used for requirements whereas the Open-to-Delivery date for future receipts is used for stock. If you want the system to calculate the Open-to-Delivery date automatically, you must enter the following details:
Base Date: The default value is the system date, but you can override this value with a past or future date of your choice.
Adjusted delivery from date (this field is a number of days, not a date)
Adjusted delivery to date (this field is a number of days, not a date)
Note
Only valid working days are included when calculating the start and end dates.
You can also use the Open-to-Delivery date range directly on the selection screen when you execute an ARun (this is a one-time event).
Example
You want to execute an order allocation run to include orders due for delivery within a seven day period, starting three days in the past and extending to four days in the future. Shipping occurs all seven days a week.
Field
Value
Open-to-Delivery
(Blank – The system calculates this)
Base Date
(Blank – The system calculates this)
Adjust From-Date
-3
Adjust To-Date
-4
If today is October 23, the allocation run includes all sales orders from October 20 to October 27. If October 20 is a holiday in your logistics calendar, the Adjust From-Date is postponed to October 21. Similarly, if one of the days in the future is a holiday, then the Adjust To-Date is moved to October 28. That is, whenever a start or end date falls on a nonshipping day, the system moves on to the next valid shipping date.
If you enter the Open-to-Delivery date range, you only need to enter either the start or end date; the system calculates forward or backward to determine the other end of the delivery window.
Field
Value
Open-to-Delivery
(Blank – The system calculates this field)
Base Date
2013-10-23
Adjust From-Date
-7
Adjust To-Date
(Blank – The system calculates this field)
The system calculates 7 days back from 2013-10-23 to determine the start date.
Note
A minus sign indicates that the system subtracts the number of days from the base date. An entry without a sign indicates that the system adds that number of days to the base date. It is also possible to have minus signs in both of the adjusted delivery date fields. This sign only makes sense if the entry in the Adjust From-Date is greater than the Adjust To-Date .