If you’re using a multi upload UUID that you get is UUID of a file group, not an individual file.
File manager in your dashboard shows individual files.
To get UUIDs for individual files in a group you can either get those in JS during upload, or request REST API Group resource.
Below is a snippet that can be used to get files’ UUIDs in JS:
var multipleWidget = uploadcare.MultipleWidget("\[role=uploadcare-uploader\]");
$ = uploadcare.jQuery; // skip this if you already have jQuery on the page
multipleWidget.onChange(function(group) {
if (group) {
group.files(); // array of file objects
$.when.apply(null, group.files()).then(function() {
$.each(arguments, function() {
console.log(this.cdnUrl); // URL of uploaded file
console.log(this.uuid); // UUID of uploaded file
});
});
}
});