According to Magento 2 dev guide on importing product images, we should be able to add additional images to the column
additional_images using full URLs.
However, when I created an import csv file with the following example:
I got a validation error for
Column names: "additional_images " are invalid. I did not have any issue with
thumbnail_image, though. Have there been any changes on how we can import additional images to existing products on the catalog? Note that I'm currently running Magento 2.1.2.