After you click the Save As Recurring button from the order dialog of the web interface, you will be asked to select a schedule of the order.

Start Date

Select the date when the recurring order will start.

Interval

Select the interval of the recurring order. Choose from weekly, fortnightly, monthly, bimonthly, quarterly, 6 months, annually, or every 2 years for the interval.

Replace the string %period% in any description with dates.

If you want to have the recurring date in the description, enabling this option will replace the text "%period" to the recurring date.

Update the prices of any items which have been changed.

Enable this option to allow the prices of any items which have been changed.