Solution : https://service.sap.com/sap/support/notes/1326146 (SAP Service marketplace login required)
Key words :
terms dpr_det_data_task_o vi_det_bas_tto reason, affected cprojects system, required entry field, field control, field status, task level, work correctly, context binding, transaction snote, restriction type
Related Notes :
| 1335432 | Field control: Composite note about corrections/information |