Chapter 4. Inventory 55 you associate a commodity group and commodity code with an item record, users ( for example planners or purchasing agents) are then able to search for items by commodity code. A commodity group can have multiple commodity codes associated with it, and a commodity code can only belong to a single commodity group. Also, commodity codes are defined at the level of the item set, and commodity group names must be unique for the item set. To configure the commodity groups and codes, access the Select Action menu shown in Figure 4- 4 and that is available in the following applications: Item Master Service Items Tools Companies Purchase Orders Figure 4- 4 Add/ Modify Commodity Codes selection 4.2.3 Item sets Item sets are Inventory items and materials, service items, and tools are created as part of an item set. An item set consists of an ID that identifies a list of items that can be shared by one or more organizations. Only one item set can be specified for an organization, but more than one organization may use the same item set. Items and tools can be transferred between organizations that share the same item set. When you create item records, all item identifiers must be unique within an item set. Everywhere that an item ID is referenced on a record there is also an item set ID. Item sets are created in the Sets application, which you can access by selecting Go To . Administration . Sets. Note: Sets are in a level between system and organization.