Assigning Subinventories to an Item
You can assign a list of subinventories to an item. You restrict an item to the list of subinventories by setting the Restrict Subinventories attribute when you define or update the item.
You can also specify planning information and locators for the item in its assigned subinventories. This information is used to perform min–max planning and replenishment processing at the subinventory level.
You can assign items to a given subinventory. Assigning items to a subinventory does not restrict the subinventory to that list of items. Rather, the items are restricted to that subinventory. Thus, you can always issue and receive unrestricted items to any subinventory, but you can only issue and receive restricted items to their list of subinventories. You activate the list of subinventories for a restricted item by setting the Restrict Subinventories attribute when defining or updating items.
You also use the item/subinventory relationship to specify valid subinventories for zero quantity cycle counts for an item, and to specify items for an ABC analysis performed at the subinventory level. In these cases you do not have to set the Restrict Subinventories attribute, only establish the relationship between the item and subinventory.
You can also specify planning information related to the items you assign to a given subinventory.
1. Assigning items to subinventory or subinventory to item does the same thing i.e it 'll restrict the item to those assigned subinventories if restrict subinventory option is enabled in item master inventory tab for that item.
When an item is restricted to a sub inventory, you 'll only get the restricted subinventories in LOV of subinventory while doing any transaction
3. If you attach an item to a subinventory in item/subinventory then the subinventory’ll be available in assigned subinventories form for that item in item master tool