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I am making a call to GetSellerList, but I do not get back the attribute information in the Item Object. Why is the AttributeSetArray not being populated and returned?
Not all calls return all the elements for container. For instance, GetSellerList returns the Item container, but it does not return all the properties of the ItemType object. To find out what information is returned for a call, you need to look at the Input / Output reference for the call.