Solution : https://service.sap.com/sap/support/notes/506646 (SAP Service marketplace login required)
Key words : 
function group coko, create process orders, create include lcokofve, engineering change management, maintenance orders, include saplcoko, change status, change number, release key, terms cor1
Related Notes : 
       
| 484067 | Create network,template standard network:release immediately | 
| 391666 | CO02: No check during assignment of WBS element | 
| 306537 | Material ledger and posting rule in order | 
| 203799 | Process order creation via POI interface | 
| 159414 | Enhancement for object types for packages and release keys | 
| 133422 | Read master data and product cost collectors |