requestAmazonProductByURL mutation. Calling this mutation for a given Amazon product will subscribe your account to webhook updates whenever that product's data changes. If you already have product catalog data for your customers, then you can safely skip this step. Otherwise, we have detailed guidance on using this mutation here.CartSettingsInput type; cart settings can be provided during cart creation or submission, and allow you to specify options like hiding pricing information from the packaging slip.returnOrder mutation. Order cancellations are also programmatic, and are requested via the cancelOrder mutation.