Set up order promising
Delivery control defaults
On the Accounts receivable parameters page, you can set up defaults for delivery control.
Also, you can set up the order promising of a product by going to Product information management > Products > Released products page.
ATP time fence
Calculate ATP by using the ATP time fence period (in days) if you select the ATP calculation method in the Delivery date control field.
ATP backward demand time fence
Enter the number of days backward from today that the system should consider past due demand (that is, inventory issues) when you're calculating the earliest available delivery dates for inventory. For example, if you enter 0, the system doesn't consider past due demand. If you enter 1, it considers yesterday's demand.
ATP backward supply time fence
Enter the number of days backward from today that the system should consider past due supply (that is, inventory receipts) when you're calculating the earliest available delivery dates for inventory. For example, if you enter 0, the system doesn't consider past due supply. If you enter 1, it considers yesterday's supply.
ATP delayed demand offset time
The number of days into the future from today when the system considers past due demand on inventory issues as having its delivery date. For example, if you enter 0, the system considers items with a past due delivery date as delivered today. If you enter 1, the system considers items with a past due delivery date as delivered tomorrow.
ATP delayed supply offset time
The number of days into the future from today when the system considers items on past due inventory receipts as received. For example, if you enter 0, the system considers the item as received today. If you enter 1, the system considers the item as received tomorrow.
ATP incl. planned orders
To include planned orders in ATP calculations, select the ATP calculation method in the Delivery date control field.
ATP calculations
You can calculate the ATP quantity by using the cumulative ATP with look-ahead method. The main advantage of this ATP calculation method is that it can handle cases where the sum of issues among receipts is more than the latest receipt. For example, when you must use a quantity from an earlier receipt to meet a requirement.
The cumulative ATP with look-ahead calculation method includes all issues until the cumulative quantity to receive exceeds the cumulative quantity to issue. Therefore, this ATP calculation method evaluates whether you can use some quantity from an earlier period in a later period.
The ATP quantity is the uncommitted inventory balance in the first period. Typically, the program calculates this quantity for each period in which a receipt is scheduled. The program calculates the ATP period in days and calculates the current date as the first date for the ATP quantity. In the first period, ATP includes on-hand inventory minus customer orders that are due and overdue.
The program calculates ATP by using the following formula:
ATP = ATP for the previous period + Receipts for the current period - Issues for the current period - Net issue quantity for each future period until the period when the sum of receipts for all future periods, up to and including the future period, exceeds the sum of issues up to and including the future period.
When no more issues or receipts are left for consideration, the ATP quantity for the following dates is the same as the latest calculated ATP quantity.
If not all dimensions that are used for an item are given when the ATP check is completed, they can still be specified on the issue and receipts. In this case, in the ATP calculation, you need to aggregate the receipts and issues to the existing dimensions to reduce the number of receipt and issue lines that the program uses in the ATP calculation.
The ATP quantity that shows is always greater than or equal to zero. If the calculation returns a negative ATP quantity (for example, if the quantity that was previously promised exceeds the available quantity), the program automatically sets the quantity to 0.
The ATP backward demand time fence field controls how far back in time to look for delayed demand orders or inventory issues.
The ATP backward supply time fence field controls how far back in time to look for delayed supply orders or inventory receipts. For example, if the program should consider orders that are delayed by only seven days in the ATP calculation, make sure that you set both fields to 7.
The ATP delayed demand offset time and ATP delayed supply offset time fields control when the program considers the delayed demand or supply in the ATP calculation. For example, if the program should consider the delayed supply and demand in the ATP calculation the day after tomorrow, make sure that you set both fields to 2. A value of 2 means that the quantity of an item on a delayed purchase order that the program should consider in the ATP calculation shows as available two days after the current date.