Optional ReadonlyavailableNumber of items of this Variant that are in stock.
Optional ReadonlychannelsPer-channel availability for the requested supply Channels.
Present only when the filter[supplyChannels] query parameter is provided.
Optional ReadonlyisIndicates whether the Variant is in stock.
Lightweight availability information for a Variant. Present only if InventoryEntries exist for the Variant's SKU.