2015 update: SAP has release an Add-On to the SAP Business Suite covering PO limit items and their processing with Ariba Network all the way through invoicing. According to the SAP product documentation, the following line item types are supported by SAP Add-On and Ariba Network:
- Standard items
- Third-party items
- Limit items
- Service items.
Certain restrictions apply, please refer to the most recent Administrator's Guide on help.sap.com: http://help.sap.com/se4aribanet10sp07?current=erp-addons
If you were looking for a quick and easy way to integrate SAP ERP with the Ariba Network for PO and Invoice automation or Discount Management, an SAP Rapid-Deployment solution is available to you for download at service.sap.com/public/rds-ariba.