I asked support seems like its not possible to do it the way I need it done. See below
The problem is that you are trying to us a ‘New Item’ import to alter products that already exist on the site. You can only modify/delete products that were created by the same import.
An ‘Existing Item’ import would be able to update those products, but it doesn’t have the ability to delete them. As such, the provided work around isn’t applicable to existing products.
You will need to perform a full backup of your site and then remove all of your products. Then put together a file that contains all of the products that should currently be on your site. Use a ‘New Item’ import to recreate them all, then use that same import to perform all updates. That will allow you to use the provided workaround for setting your stock to 0.
