Solution : https://service.sap.com/sap/support/notes/110903 (SAP Service marketplace login required)
Key words : 
investment support key error message aa654, additional key words saplafar, depreciation start date, shortened fiscal year, depreciation key, fiscal year, previous year, depreciation area, fixed asset, period control
Related Notes : 
       
| 672255 | Shortened fiscal year/changing fiscal periods |