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You can specify for each item in a model or option class bill whether Order Entry must perform an ATP check before scheduling a ship date for that item using the Check ATP Bill of Material attribute for the orderable items in the bill and the Check ATP item attribute for all standard components. The ATP Components item attribute indicates whether an item contains components in its structure that also require an ATP check.

Note: If the Check ATP item master field is set to Yes, you can change this value when you create a bill of material. If the Check ATP is set to No, it cannot be updated when you create the bill.

You would set item attributes per the above table if you wanted to promise ship dates for Laptop Computers based on the available supply of keyboards, processors, and monitor manuals, but the supply for other components was not constrained.

If you ordered a Laptop Computer with a 486 processor, VGA1 monitor, and DOS operating system and requested a shipment on 2/5, Order Entry would offset that ship date to compute a requested availability date for components and then perform a group ATP check for all Check ATP components simultaneously.

The table below illustrates sample results of a group ATP check. It includes all components from the previous table that would be included in the selected configuration and whose Check ATP attribute is Yes. In this case, the requested date for components is offset to 2/1, four days before the requested ship date. The group ATP check found that the Keyboard is the latest available component, so the ship date for the entire configuration would be set to 2/3 plus the four day offset for manufacturing lead time.

Level	Item	Type	Qty	Requested Date	ATP Date
. . 3	. . Keyboard	Product	1	2/1	2/3
. . . 4	. . . 486 Processor	Purchased Item	1	2/1	1/28
. . . . 5	. . . . VGA Manual	Purchased Item	1	2/1	2/2
. . . 4	. . . Monitor Manual	Purchased Item	1	2/1	2/1
Table 4 - 20. Group ATP Check (Page 1 of 1)

Oracle Inventory lets you define different ATP rules for different items, depending on how you manage your inventory. You can promise ship dates from master schedules, discrete jobs, repetitive schedules, purchase orders, on-hand inventory, or any combination. And, you can specify rules to control ATP netting to match your order promising policies.