For the Interview Feedback To Do tile no due date is appearing and its not possible to configure one.
SAP SuccessFactors Recruiting Management
This has been confirmed by Product Management to be expected behavior.
It is not currently possible to configure a Due Date for the interview Feedback To-Do tile. If you would like to change this behavior please create an enhancement request.
2090228 - How to Submit Enhancement Requests for SAP SuccessFactors Products
KBA , LOD-SF-RCM-IVW , Interview Central, Interviews, Scheduling etc , Problem