Hi
As written above what`s the difference between them and how does it effect on axapta and (production/logisctic work).
Item is an item.
Vendor indicates this is part of the subcontract process and a purchase order can automatically be created.
A production creates a linked sub-produciton order for the item
A phantom is a phantom, a BOM blown through and the constituent parts listed on the top level requirements because this sub-assembly is not actually held in stock.
I suggest you read the BOM manual, either in trade and logisitics or in Production I cannot remember where it is.