I'm trying to export the products with variants from odoo8 to odoo16, but the problem i have is that when i import the products, automatically creates the variants, without the EAN13 Code.
And i can't just update the products variants because the External ID is different, since the products variants were created automatically when the product was imported.

I've also tried to do a libre office calc formula with VLOOKUP, but i couldn't because apparently, odoo16 manage the variants differently than odoo8.

Any ideas?