We have started using the high/low priority buttons to distinguish meaningful contacts with constituents. We have learned that our fundraisers can't go back and edit the priority on an action they have marked complete. They have to uncheck the completed checkbox, set the priority, and re-check the completed checkbox, before the "save" button is enabled. Other fields can be edited on completed actions without this workaround, so we don't understand why this is necessary for the priority flag.