I hoped to use an SIS upload to change the settings on a bunch of existing courses both adding an "Ends:" date and switching their status from "active" to "completed."  When I do the upload, there are no errors, but neither the status or the "Ends:" date changes.  (The same upload can be used to successfully change the Term.)  I'd appreciate any tips on how to do this (or confirmation that it's not possible).  Thanks.