Overview
To extend the dates products are available beyond the date of the original season end date, there are two steps required if the product that you wish to extend is dynamically priced. If the products that need to be extended are not dynamically priced, then ignore step 2.
Prerequisite Tasks
Be sure to check if there are products in your shop that are published, NOT dynamically priced, and that should NOT be extended along with the extended season. These products will be extended with the season if you follow these steps. To handle these products that are published, NOT dynamically priced, and that should NOT be extended, first dynamically price these products for the dates they are available for sale from today's date forward, and then follow the steps below to extend the season for desired products.
Checklist
Update Season End Date Setting
Update Dynamic Pricing
1. Update Season End Date Setting
Go to Configuration > Settings > All Settings in Admin.
In the name field, paste seasonsettings.enddate and click Search.
Select to Edit the seasonsettings.enddate setting and enter the date you wish to extend your season through. It must be formatted YYYY-MM-DD to work.
2. Update Dynamic Pricing
Ensure that the product that should be extended also has dynamic pricing set up through the desired extended season dates. See the documentation on Dynamic Pricing for instructions.