Solution : https://service.sap.com/sap/support/notes/425314 (SAP Service marketplace login required)
Key words : 
additional key words time-phased mrp, reorder point mrp, attached advance corrections, forecast-based planning, fiscal year variant, mrp 3-view, forecast requirements, fiscal year, calendar year, period indicator
Related Notes : 
       
| 710741 | MD04: Posting period for forecast rqmts. displ. incorrectly | 
| 672255 | Shortened fiscal year/changing fiscal periods |