This generator requires a product name and at least one Offer fact. It emits a supplied price as a JSON number, accepts a three-letter ISO 4217 currency code, and uses full Schema.org ItemAvailability URLs for the statuses it offers. These are the tool’s input and output rules; Google’s required and recommended properties still depend on the Search feature.
Sources: [2] Google Search Central: Product snippet structured data, [3] Google Search Central: Merchant listing structured data, [18] Schema.org: ItemAvailability