Warning
This is a Elite feature of Cowlendar. You need to upgrade your plan if you want to use this feature and you are a free user of Cowlendar.
With upsell you can add any number of services or products as upsell
Just make sure you've pervasively created the product/service that will be used as add-on then
Steps to add Upsell to a Cowlendar service
In your Shopify admin dashboard look at the left panel and click on the Apps
Click on Cowlendar
Click on My Service
Click Edit on the service you want to add upsell to
Click on Payments tab
Scroll down until you find the Upsell Section
Warning
Products can only be upsold AT the confirmation page Services can only be upsold AFTER the confirmation page Add each to its respective category or it will not work properly!
Customize the label, type and more to fit your needs
Click update before leaving
