Solution : https://service.sap.com/sap/support/notes/494015 (SAP Service marketplace login required)
Key words : 
abap workbench -> ddic objects -> development -> dictionary1, attached source code corrections, source code corrections, schedule line reason, schedule line level, mutual dependencies result, ddic change, source code, terms transactions, /sapapo/bop
Related Notes : 
       
| 543706 | |
| 494284 | Backorder processing: R/3 ACTIME | 
| 494270 | Backorder processing: R/3 ACTIME | 
| 494005 | Changed confirmation time is not transferred | 
| 375193 | Backorder processing: Composite SAP note on posting |