Solution : https://service.sap.com/sap/support/notes/427668 (SAP Service marketplace login required)
Key words : 
additional key words product upload, system issues error message, external product interface, attached advance correction, system issues, error message, individual conditions, condition types, business partner, main memory
Related Notes : 
       
| 396690 | SAP CRM 3.0: Information on Upgrade |