I have a custom field "tasktime" in all task categories where the users describe the time they've spend to resolve a current task.
I need to calculate the overall time of all tasks in one change ticket and display the result in the Change Record.
For example: I have 1 change ticket. In that change ticket there are 4 different tasks. Each task took 2 hours for resolution, so in each record we have the value "2". Now i have to see the overall result of "8" in a new custom field in the Change ticket.
Any ideas how can I achieve that ?
Many thanks in advance.