Hello,

It seems there is no database task set up for this function by default, so you have to create a new database task first. For this go to “New Database Task” → Select Method → Go to General Inventory and Distribution, then select PeriodTemplateManager → PERIOD_TEMPLATE_MANAGER_API → Recalculate_Template.

You can assign the values for the parameters here and then save. (The example for the values is based on your screenshot. Sysdate means the date of the creation of the task schedule will be used as begin date) You can also leave the values blank here and enter later in the respective schedule.
 

Once the database task is saved, you can setup a schedule by clicking on “Create New Schedule”. Here you can decide in which intervals and in which language the job should be executed.

You can also set up several schedules (with different parameter values), if you need.
 

Since I have never set up a schedule for this specific function, you may want to test this works to your requirement. 

Cheers,
Linda