Solution : https://service.sap.com/sap/support/notes/1015058 (SAP Service marketplace login required)
Key words : 
-existing pm/cs order, i_tcodeauthorization check reason, iw63 solution implement, source code corrections, error message i0 099, transaction iw62/iw63', transaction iw32, program error, transactions iw62, system issues
Related Notes : 
       
| 1322206 | PM/CS order: incorrect error message for IW32 and IW33 | 
| 936389 | |
| 886497 | |
| 825105 | Displaying archived PM/CS orders via archive |