This Tasks setting lets users re-open a closed work order, modify its details and keep the original completion date and time stamp. Turn it on when work orders get re-opened to add notes or context, or re-opened in error, so reporting reflects when the work was actually completed.
Permission required
The ability to view and manage Tasks settings is a user permission.
Turn on the setting to keep the original completion date
Open Settings
Navigate to Settings.
Open the Completion submenu
Select the Completion submenu under Setup > Tasks.
Tick the re-open option
Select the tick box for Allow users to re-open closed work orders, modify details, and retain the original closed work order date and time (web and mobile).

Tip
The setting applies on both web and mobile, as its label states.
What changes for maintenance technicians
Maintenance technicians can preserve the completion date and time stamp, along with the notes and photos associated with completing a work order.