Learn how to preview an invoice using the subscribe() call.

1. Call subscribe() , passing the appropriate product rate plan and charge data.
2. Populate PreviewOptions :
   1. Set EnablePreviewMode to true .
   2. Set NumberOfPeriods to the number of billing periods to include in the preview invoice, or
   3. Set PreviewThroughTermEnd to preview the invoice through the end of a termed subscription (WSDL 51.0+).

   • You can only set NumberOfPeriods or PreviewThroughTermEnd , but not both.

   • As an alternative to NumberOfPeriods or PreviewThroughTermEnd , you can set the InvoiceTargetDate in the SubscribeOptions to preview to a specific date.

   • If neither NumberOfPeriods nor PreviewThroughTermEnd nor InvoiceTargetDate are specified when EnablePreviewMode = true, then 1 billing period will be previewed by default.

3. Zuora returns an InvoiceData node in the SubscribeResult , which contains the invoice and resulting invoice items.