The cancel button does not simply cancel the recent changes you’ve made on the current page or revert to a previously-saved version of the document (which is accomplished via reloading), but instead it cancels the ability to route and/or submit the document.  You can copy a canceled document to a new document number that essentially moves your work from the canceled document to a new one.

You are no longer able to route or submit this document.  However, if you want to preserve data entry/selection and/or attachment work from this document, you are able to copy it.

For more information about e-doc copying, see Copying a Document in Common E-Doc Procedures.