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Components and Fields in Integration Objects
Components define the hierarchy of an integration object, and a component contains one or more fields and child components. In Figure 5, the Contact integration object has these components: Contact_Personal Address, Contact_Account, and Contact_Opportunity; Personal Address has the additional fields, PersonalAddressState and PersonalAddressZip.
By default, all fields are active. However, you can deactivate these fields to satisfy the different requirements for each ASI and to increase performance of the ASI. For more information about deactivating field components, see Deactivating ASI Components and Fields.