Launch the checkout flow to purchase the existing product.
Oculus Home tries handle and fix as many errors as possible. Home returns the appropriate error message and how to resolve it, if possible. Returns a purchase on success, and an error on user cancellation or other errors.In the case of a user cancelation, the
Error::Message value will contain a JSON object with a "category" property containing a value of "user_canceled".
Parameterssku sku for the item the user wishes to purchase.