Solution : https://service.sap.com/sap/support/notes/545824 (SAP Service marketplace login required)
Key words : 
crm/ebp system numeric product ids, crm/ebp system, bbp/crm system, /3 back-end system, lexicographical storage type, 'save lexicographically' flag, set storage type, line item arrives, solution sap recommends, erp system
Related Notes : 
       
| 872533 | FAQ: Middleware |