CreateInvoice Method
Creates an invoice.
Syntax
int CreateInvoice();
Remarks
This method is used to create an invoice.
InvoiceInfo is used to specify the details (such as amounts, dates, and terms) of the invoice. InvoiceItems is used to specify items that are to be included on invoice. MerchantInfo, BillingInfo, and ShippingInfo are used to describe the contact information about the parties involved in the transaction that the invoice pertains to.
After calling this method, the Ack property will indicate success or failure.