When duplicating of a product with variants, Odoo creates a new product (copy), but without variants: they have all disappeared. This is probably a standard decision by the editor.
However, i'm sure other people have hade the need to duplicate a product and keep variants. Is there a module to allow this?
Thanks
What version are you using? This totally changed between v7 and v8.
I should have been more clear from start: V8.0