BIL tool doesn't copy parent ASIN



I have created my listing (with 2 variations) on the FR marketplace and I have 1 parent ASIN and 2 child ASIN. I have then used the Build International Listings tool to duplicate my listing in all other EU marketplace. But only child ASINs has been copied. On the frontend my child ASINs are showed as variation from each other but the reviews are not combined which is weird.

I understood that the BIL tool cannot copy the parent ASIN. But how do I do to create them ?

I have tried “Add products” tool and the flat file upload but none of them worked…

Any help are welcome!