Hi, unfortunately I don’t understand the issue or question. When you create two variants with the same product (template), the product (template) has two product variants. HIH
I can’t reproduce. When I create a product (template) only one variant is created per default. See https://demo6.6.tryton.org/#demo6.6/model/product.template/18;name=“Products”&views=[304%2C303]
Only when I also press on [+] button in the variants menu, I get two variants: the default one and the additional.
So maybe you just need to fill the default variant on product template creation and save the product template.
If you create a template from the product form, you will end up with 2 variants because the creation of a template create a variant by default. So you must delete the variant when creating the template in this case.