Each year, service dates for the following year need to be established.
To create the dates, navigate to File and then Data on the top left of Service Manager.
Find the option Service Dates at the bottom of the screen under Scheduling.
Here you can click Create Dates.
In the popup window, choose the starting date for creating the new dates. Select the periods you wish to apply to that date, then click Create.
A progress window will appear. Once the process is complete, your dates will be generated based on the criteria you specified.