Sending Credit Memos via XML 
Use
As an accountant, purchasing assistant, or vendor, you can send credit memos 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 credit memo is still being processed or if it has already been sent.
Prerequisites
The SAP Exchange Infrastructure or the SAP Business Connector is installed.
The necessary communication data has been defined under Managing External Business Partners.
The credit memo that you wish to send via XML is complete and, therefore, has already been approved.
Procedure
In SAP Enterprise Buyer you can send invoices using the action Send Credit Memo via XML or using the action Display/Change Credit Memo.
Sending Using Send Credit Memo via XML
...
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 Credit Memo and Send via XML.
3. Enter the search criteria for the credit memo that you wish to send via XML and then choose Start.
4. Select the credit memos that you wish to send using the checkboxes in the first column and then choose Send via XML.
Sending Using Display/Change Credit Memo.
For more information on sending credit memos, see Displaying and Processing Credit Memos.
See also:
XML – Messaging: Open Catalog Interface