bundleProductID

Identifies the bundle product the transaction is for. If this transaction is created as a result of a subscription bundle purchase or renewal, this field will be populated with the product ID of the bundle.

@backDeployed(before: iOS 27.0, macOS 27.0, tvOS 27.0, watchOS 27.0, visionOS 27.0)
var bundleProductID: String? { get }