Oracle EBS Learnings

What exactly is a Phantom item or Assembly means? Can anyone plese tell me what exactly is a phantom item or assembly means?  How does it affect the MRP process?  Phantom Supply Type (what Oracle says) • Phantom components can be assigned to bill of material component subassemblies and subassembly items in Oracle Bills of Material and Oracle Engineering. Components of phantom subassemblies are used as if they were tied directly to the parent assembly. Phantom supply types cannot be assigned to jobs and repetitive lines/assembly associations in Work in Process. See: Phantoms. • Phantoms behave normally when they are top level assemblies, such as when master scheduled or manufactured on a discrete job. As subassemblies, they lose their distinct identity and become a collection of their components. Phantom components (not the phantom itself) are included on discrete jobs and repetitive schedules and are listed on the Discrete Job and Repetitive Schedule Pick List Reports

What Is A Party? One of the most important things to understand about the TCA model is that  the concept of “customer” is separated into two layers: The Party layer and the Account layer When CRM applications refer to “Customer” they are referring to the Party Layer. On the other hand, when ERP applications refer to “Customer” they are referring  to the Account Layer. Thus, confusion arises because both are using the word “Customer” to refer to two different things. Party Layer The Party layer consists of the Party itself, and the attributes of the  Party (such as the Party's addresses and contacts). A Party is defined as an entity that can enter into a business relationship. A Party can either be a Person or an Organization. Examples of Parties: Legacy Communications, Inc. (Organization) University of California (Organization) Girl Scouts of America (Organization) Jim Johnson (Person) Parties may have one or more addresses, and each address may have one or more