Issuu integrated Dropbox online storage natively in the UI for document upload. So, an Issuu user can select to directly access their Dropbox files and upload directly into Issuu.com from Dropbox.com. However, only the user files are showing up, and any shared files are not showing up in the Issuu integration displaying the Dropbox files. The shared files do show up in Dropbox.com. I think this might have to do with type paid plan, but I can't find any information on this. Any assistance would be greatly appreciated.