Solution : https://service.sap.com/sap/support/notes/510065 (SAP Service marketplace login required)
Key words : 
status sbewebe 2 'posting carried, status sbewebe 3 'posting marked, source code change, attached advance corrections, relevant support package, accrual/deferral flows, accrual/deferral, contract activity, terms swap, collect_data reason
Related Notes : 
       
| 524372 | OTC: Accrual/deferral flows deleted |