PDFs of submissions get overwritten by new submissions each time in our DropBox account

- On the Dropbox right now, every daily sumission gets into same folder and the PDF gets re-written. Is that ok? Can you point into a tutorial for that?

That should not happen, but that depends on how you have set your PDFs to come.

Unfortunately we can not see how you have set your DropBox integration, so if you would, please do take a screenshot of your setup and we would be able to give you a suggestion as to what we would change, but the following guide: How to setup folders using UniqueID in Dropbox should show you how to have your DropBox integration set properly so that no two submissions overwrite each other.