Hi,
I have a custom field in activities like phone call, task, email which is named "Billable", which is two options - yes or no.
In case form I have created also a custom field named "Total billable time" which sums all durations of child activities if the field "Billable" is set as "Yes".
My question is how can I update Billable time during case resolution by the value of my custom field "Total Billable Time"?
Also is it possible to add field security on billable time?