WooCommerce import products with image URL that doesn’t exist

I need to import a large number of products (30,000+) into WooCommerce. The free import process works well. In my CSV file, I want to specify the URL of the product image but that file does not yet exist. I want to import/create all the products with their image URL and add the images later. Initially, all the products will display the default image (because their image URL does not exist) but as I upload the real images, they will get displayed (gradually). The free import process checks if the image URL exists and fails if it does not exist. Is it possible to override/ignore this functionality and allow the product to be imported (with the ‘missing’ image URL)?