MTL_SYSTEM_ITEMS_B

MTL_SYSTEM_ITEMS_B is the definition table for items. This table holds
the definitions for inventory items, engineering items, and purchasing
items. You can specify item-related information in fields such as:
Bill of Material, Costing, Purchasing, Receiving, Inventory, Physical attributes, General Planning, MPS/MRP Planning, Lead times, Work in Process, Order Management, and Invoicing.
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You can set up the item with multiple segments, since it is
implemented as a flexfield. Use the standard 'System Items' flexfield
that is shipped with the product to configure your item flexfield.
The flexfield code is MSTK.
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The primary key for an item is the INVENTORY_ITEM_ID and ORGANIZATION_ID. Therefore, the same item can be defined in more than one organization.
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Each item is initially defined in an item master organization. The
user then assigns the item to other organizations that need to
recognize this item. A row is inserted for each new organization
the item is assigned to. Many columns such as MTL_TRANSACTIONS_ENABLED_FLAG and
BOM_ENABLED_FLAG correspond to item attributes defined in the
MTL_ITEM_ATTRIBUTES table. The attributes that are available to the
user depend on which Oracle applications are installed. The table
MTL_ATTR_APPL_DEPENDENCIES maintains the relationships between item
attributes and Oracle applications.
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Two unit of measure columns are stored in MTL_SYSTEM_ITEMS_B table. PRIMARY_UOM_CODE is the 3-character unit that is used throughout Oracle Manufacturing. PRIMARY_UNIT_OF_MEASURE is the 25-character Unit of Measure that is used throughout Oracle Purchasing. Unlike the PRIMARY_UOM_CODE, the Unit of Measure is language-dependent attribute, however, PRIMARY_UNIT_OF_MEASURE column stores value in the installation base language only.
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Items now support multilingual description. MLS is implemented with a pair of tables: MTL_SYSTEM_ITEMS_B and MTL_SYSTEM_ITEMS_TL. Translations table (MTL_SYSTEM_ITEMS_TL) holds item Description and Long Description in multiple languages. DESCRIPTION column in the base table (MTL_SYSTEM_ITEMS_B) is for backward compatibility and is maintained in the installation base language only.