Solution : https://service.sap.com/sap/support/notes/928482 (SAP Service marketplace login required)
Key words : 
desadv message category, schedule line furthest, material requirements planning, scheduling agreement item, 'attributes' tab page, select 'start immed', 'tables' tab page, attached correction instructions, 'update module' option, me_confirmation_redistr_items function module
Related Notes : 
       
| 730151 | BORES schedule lines are not reduced correctly | 
| 202875 | Correction report: Redistribution using batch input |