Once you have created a service task for a return you can administrate and complete it. Service tasks can be searched for and accessed in 2 ways:
Access a service task from the return details
All service tasks for a return are accessible from the return details. from here, you can access and manage the service task.
Access a service task from the service task overview
All open service tasks can be accessed from the service task overview. From here you can access and manage the service task.