Sending Invoices via XML 
Use
As an accountant, purchasing assistant, or vendor, you can send invoice documents in XML format. You can choose from print (paper), fax, or e-mail as the output form. In a log, you can display the processing status of the document and check, for example, if the invoice is still being processed or if it has already been sent.
Prerequisites
The SAP Exchange Infrastructure or the SAP Business Connector is installed.
The invoice that you wish to send via XML has already been approved.
Procedure
In SAP Enterprise Buyer you can send invoices using the action Send Invoice via XML or using the action Display/Change Invoice.
Sending Using Send Invoice via XML
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1. Start the application Enter Invoice / Credit Memo Centrally from the side menu.
As a vendor, you start the application Enter Invoice / Credit Memo from the side menu.
2. Select Invoice and Send via XML.
3. Enter the search criteria for the invoice that you wish to send via XML and then choose Start.
4. Select the invoices that you wish to send using the checkboxes in the first column and then choose Send via XML.
Sending Using Display/Change Invoice.
For more information on sending invoices, see Displaying and Processing Invoices.
See also:
XML – Messaging: Open Catalog Interface