Creating ads involves either embedding code in the creative assets, or in configuration files in HTML Workspaces, prior to uploading the files to Amazon Ad Server (AAS). In the past, any changes that you wanted to make to this code after the files were uploaded, required updating the code in the asset outside of AAS, and re-uploading the asset with the new code.

The Code Editor in AAS enables you to edit code directly on the asset level. The Code Editor supports HTML/HTM, CSS, JavaScript, Text, CSV, XML, JSON, and INI files.