Solution : https://service.sap.com/sap/support/notes/1112879 (SAP Service marketplace login required)
Key words : 
attached source code corrections, terms prd_set_api reason, import products, system issues, error message, change data, solution implement, message_type_x, prerequisites, notes 1102001
Related Notes : 
       
| 1156748 | Order unit not posted in SRM - subsequent note | 
| 1102001 | Products not posted using XML | 
| 1072160 | XML import generates short dump when importing attributes | 
| 872533 | FAQ: Middleware |