In New Hire Data Review coordinators can’t see the completed on date, but admins can.
"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."
SAP SuccessFactors Recruiting Management
“Completed on“ will not appear post 2205 release. Due to some technical limitations, it was removed for completed activities.
New, hire, data, review, completed, on, date
KBA , LOD-SF-OBD , Onboarding , How To