A very common error is that when customers try to add your membership product to the cart, they see the error Variant can only be purchased with a selling plan. A selling plan is the name given by Shopify to purchase options, such as memberships or subscriptions.
Simplee Memberships updates your Shopify product to require a selling plan so that customers can't accidentally purchase the product without recurring billing properties.
What's the Cause?
This simply means that our membership widget isn't turned on, or is not working correctly with your theme.
How to fix this issue
Try the following things to resolve this issue:
Open your theme customizer for the theme you are testing on
Open the App embeds section, and ensure the Membership Widget is enabled
Save your theme, then try loading the product page again
Still not working?
This likely means there is a conflict between our script and your theme. Please reach out and our team will perform a manual installation for your theme.