We give our corporate customers different 'support service time' according to their contract type/tier (Silver, Gold, Platinum), for example 400 hours to a Platinum customer
Is it possible to have a number field that can keep track of this 'Remaining Service Time' by subtracting 'Time Spent' on requests created by members of the organization?, and when the value of 'Remaining Service Time' reaches 0, the members of that organization can no longer create a request and get a notification about the 'Remaining Service Time'