Our Magento 2 Amazon Connector module works as per the limit defined by the Amazon. Means, the module import the multiple images as per the limit is defined for uploading the images in Amazon store. For now, you can upload up to 9 images in your Amazon store for a product but only 7 images and 1 base image will be visible in the listing. The 9th image is hidden unless the customer clicks into the image gallery. For more details, please check this Amazon link.
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