I have created a new onboarding template which I've placed under the Service Catalog.

Now I need to add 3 tasks.  These tasks are dependent on each other and have an auto assigned technician.  I am needing some advice on how I can notify the technicians consecutively as one task gets completed.  I would really appreciate some advice from anyone who has a similar setup or the know how.

I don't require an approval process as the appointment has already been approved at this point.  So this is to start off the process in getting the user created, access granted and payroll/finance set up.

Task 1 - Create user account details

Task 2 - Payroll setup (this Task cannot be done before Task 1)

Task 3 - Finance setup (this Task cannot be done before Task 1 and 2)

I need a way to notify the next assigned technician when a task is complete

Any help would be much appreciated