Keep files in trash: unit must be minutes, hours, or days
Admin settings rejected an invalid trash retention unit.
Why this happens
Unit must be exactly minutes, hours, or days — not weeks/months or free text.
Diagnose and fix
1. Select minutes, hours, or days in the Keep files in trash control.
2. Pair with a valid amount (1–3650).
3. Save.
4. See Trash retention and Trash cleanup interval.