Solution : https://service.sap.com/sap/support/notes/1102001 (SAP Service marketplace login required)
Key words : 
attached correction instructions, advance correction, change products, terms prd_set_api, prd_set_trans reason, system overwrites, solution implement, prerequisites, attributes
Related Notes : 
       
| 1156748 | Order unit not posted in SRM - subsequent note | 
| 1112879 | Short dump in COM_PRD_SET_REG_CREATE_M | 
| 872533 | FAQ: Middleware |