• You can implement any combination of the four controls (locator, revision, lot, and serial number) for each item.
• Inventory controls are optional for all items. You can choose to implement inventory controls for specific items.

Locator Control Hierarchy
Oracle Inventory uses the following hierarchy to determine which locator control option to enforce during transaction entry:

1. Org level overrides subinventory and item level.
2. Subinventory level overrides item level.
3. If decision is pushed to item level, Oracle Inventory uses item level.

Defining Locators
Locators are structures within subinventories. Locators are the third level in the enterprise structuring scheme of Oracle Inventory. Locators may represent rows, aisles, or bins in warehouses. You can receive items directly into and ship items
directly from locators.
You can structure your Oracle Inventory installation so that some of the subinventories and items have locator control while others do not. Each locator you define must belong to a subinventory. Each subinventory can have multiple locators.

Defining Revision Quantity Control A revision is a particular version of an item, bill of material, or routing. By using the revision quantity control option you can track item quantities by item revision. To do so you must specify a revision for each material transaction. You can enable revision quantity control for items for which you must track version changes or changes that are significant enough to track but are not affecting the function and feature of the item and therefore do not require an item change.

Defining Lot Control

A lot is a specific batch of an item that you receive and store in your organization. Lot control is a technique for enforcing the use of lot numbers during material transactions, thus enabling the tracking of batches of items throughout their movement in and out of inventory. With Oracle Inventory you can establish lot control for specific items in your organization.

Defining Serial Number Control

A serial number is an alphanumeric piece of information that you assign to an individual unit of an item. A serialized unit is a combination of an item and a serial number. You can track individual units of items by using serial numbers. Serial number control is a system technique for enforcing the use of serial numbers during a material transaction. You can use serial numbers to track items over which you want to  maintain very tight control.