Nexternal offers a robust image management tool to make product image management easy. The tool allows you to display single or multiple images per product, and to create global image size settings for each image type, which apply to all images uploaded after the settings are created.
Please watch this 17-minute instructional video on how to use the global product image management tool:
After you've watched the video, if you have any additional questions please contact Customer Support as directed at the top of the Settings section in your Nexternal Order Management System.
For best practices regarding naming your image files, we recommend this article. These protocols make a difference in the ease of your catalog management, your customer experience, and search engine optimization!