What are Items?
Items are typically identifiable by their SKU.
How are Items created?
For sellable products, this happens automatically as part of an ecommerce integration. It's also possible to import a CSV or create Items manually by clicking "Create Item" in the upper right from Inventory Search.
How do I search and export Items?
Inventory Snapshots are captured daily. You can find them by going to Files→Search. Filter the search using resourcetype=inventory snapshot. You can find more information about inventory snapshots here.
Manual CSV exports, which capture the most up to date information but take longer - download csv export