I'm having a hard time understanding this statement from Help Center: "While phantom assemblies are typically used as components in a larger assembly build, they can also be used to create stock items. For example, as part of a warranty claim, a batch of replacement wheels could be manufactured using a phantom assembly." What does the last sentence mean?

it is just saying the phantom can be used directly on a work order as a stand alone item. Sometimes with phantom assembly items you only build the phantom piece as part of the bigger build. But there times when you want to build the phantom (or sub assembly) and stock it.

Thank you. Makes sense. So, I'll just change the Item Source in the WO to other than phantom then.