1. When the Import Receipts functionality was used to import receipts to SAP Ariba Buying solutions from SAP ERP, the receipts were stuck in the Processing state in the SAP Ariba Buying solution. Such receipts could not be exported out to the ERP or sent to the SAP Business Network.
2. The Export Receipts task was not picking up the imported receipts as SAP Ariba was internally processing them.

The Application.Receiving.IncludeExternalReceiptsInExport parameter was set to No. Enabling the parameter resolved this problem. The default value for this parameter is Yes.

If the parameter Application.Receiving.IncludeExternalReceiptsInExport is set to true, Ariba exports the Imported receipt again to ERP like a normal Receipt and expects back a response. It even creates duplicate receipts in ERP, if not handled well. Please note that there are scenarios where Customers import Receipts from a 3rd Party Application into Ariba and push it to ERP. So customers should evaluate their business requirements and set the parameter accordingly.

Core Procurement > Core Administration > File Channel Integration
Core Procurement > Core Administration > Webservice Integration
Purchasing > Receiving > Receipt Import/Export