Solution : https://service.sap.com/sap/support/notes/1572545 (SAP Service marketplace login required)
Key words : 
depreciation program calculates correctly, depreciation program calculates depreciation, shortened fiscal year, depreciation program, symptom depreciation, depreciation area, reduction settings, terms xrumpf, ignore_short_yr reason, prerequisites error
Related Notes : 
       
| 672255 | Shortened fiscal year/changing fiscal periods |