Assembly items

An assembly item is an item with default source Assembly. You specify the default source of an item in the Default Supply Source field in the Items by Site (tcibd1550m000) session.

Note: If Sites is Inactive in the Implemented Software Components (tccom0100s000) session, the default source specified for the item in the Items (tcibd0501m000) session is considered.

Restrictions

The following rules and restrictions apply to assembly items:

An item cannot be both a revision-controlled item and an assembly item.
An assembly item must be a serialized item.
An item with item type Configuration Module is always an assembly item.
A project item cannot be an assembly item.
An assembly item cannot be used as subassembly for subcontracting.

Item types

You can use items of the type, Product. If the Item Type Product concept is Inactive in the Implemented Software Components (tccom0100s000) session, you can use an item of the type, Manufactured.

For compatibility purpose, this functionality can also be used for generic item. You can maintain an item of the type, Generic in inventory. For more information, see Store finished generic items.

Alternatively, you can configure product variants that contain purchased configurable items. You can use a configurable item to create a item structure that can hold a configurable purchased sub-assembly. You can store the end item in Warehousing and perform inventory transactions.

For more information on procuring purchased configurable items in Assembly Control module, refer to

Procuring configured items in Assembly Control - Master Data Setup
Procuring configured items in Assembly Control - BOM setup
Product variants - Purchased configurable items

Assembly items and FAS items

A FAS item is a Generic, Manufactured or Product item with the FAS (Final Assembly Scheduling) order system. FAS items are produced in a mixed model flow process on an assembly line.

If you set the Default Supply Source field in the Items (tcibd0501m000) details session to Assembly, LN automatically sets the Order System field in the Items (tcibd0501m000) session to FAS. You can also specify the order system by warehouse-item combination in the Item Data by Warehouse (whwmd2510m000) session.

An assembly item must have order system FAS.