"Generic Child Variant" - Prevent adding Parent to Shopping cart

[Studio 42]

This https://shop.st42.fr/en/products/shortcodes.htm implement mandatory fields without any hacks or template changes.
See http://pro.st42.fr/en/shortcodes/test-product-no4-in-engb.html for eg.

[lausianne]

"Rating: 5 based on 1 rating" - This must be good 

Could actually be the solution, plus some extras, thank you!

EDIT: It actually solved my problem. But mine was not about variants (OP), only about custom field options.

[jjk]

Normally you would add a custom field type 'Generic child variant' to the parent product. Afterwards you can select the option 'Parent orderable' Yes/No in the 'Product Edit' view > 'Custom Fields' tab.