Copy Purchase Order Line Item Segments To An Invoice

POST /api/.../invlineitems?source=segmentids&invoiceid={invoiceid}

Copy one or more purchase order line item segments to an exisiting invoice. Click here for details.

Create a new Invoice and copy Purchase Order Line Item Segments To The Invoice

POST /api/.../invoices?action=createinvoicewithpolinesegments

Copy one or more purchase order line item segments to a newly created invoice. Click here for details.