Indicates that the product has changed or will soon change (usually due to a migration from one catalog to another catalog). Typically, this field is returned for up to 90 days for a given product. After that, the product either no longer returns this field or the product is no longer returned (depending on the state change).
This data is primarily applicable to catalogs used by the US, Germany, Austria, and Switzerland sites. Other sites may undergo catalog changes in the future.
See the Field Index to learn which calls use ProductState.
Title associated with the product. This value can be used as the basis for a suggested listing title. If the title is longer than 80 characters, your application should make sure the suggested title has a maximum length of 80 characters so that it will be valid for the AddItem family of calls.
Unique identifier for the product. See the Developer's Guide for information about eBay product IDs. If the primary and secondary category are both catalog-enabled, this ID corresponds to the primary category.