Standard Supplier Invoice Web Service Usage

Hi Experts,

I would like to use the standard web service "ManageSupplierInvoiceIn" to create multiple supplier invoices in the system with and without referencing to a available PO in the system.

Out of the operations available on standard WS which operations I have to use for creating multiple supplier invoices.

In these multiple invoices some I have to create with reference to available PO's and some without referencing i.e., manual PO.

I need some sample payload structures for both the creation requests (with and without reference) with two or more line items.

Thanks.

Regards

Hanu K