To update or add a new start date to an existing price list, head over to the Control Panel, under the Billing section, click on Manage Price Lists.
The list of existing price lists will appear, click the 'Pencil'-icon.
The following dialog will appear, click the 'Calendar'-icon.
The following field will appear with today's date set as default: You can click on the field to specify any start date you want.
The following calendar dialog will appear where you can select any date you want.
After selecting a new start date, all of the rules, filters, and conditions will be duplicated. You can either click the Save button to save the changes immediately or update the price list before saving.
For more information about viewing old dates for a price list, click here.
1. Ensure that you are a User with 'Administrator'-rights set up to be able to access Control Panel.