How can I see the past records of service tickets or locate their serial number histories?

Navigate to the “Service” module.
Proceed to the “Open Service” section.
From the dropdown menu, choose “Total Service.”
Click on the search icon and enter the Serial number in the ‘Serial No.’ field, then click the search icon.
All the service calls logged for this serial number will be displayed.
You can download the data in Excel by clicking on the Download icon at the top.

Alternate way go to the inner page of the particular Serial number by clicking on the Serial number in any pages which displayed the Serial number.

You can also see inside the service ticket all the history associated with that Serial number.