I have set up a dataform with a state field for 'not complete/completed' - I have then used the grade calculation (##:State##) to use this to transfer this response to the grade book - and to then mark the activity as complete or not within activity completion settings.
This works at first, e.g. when the tutor changes the state field from not complete to complete, the activity is correctly marked as complete, however - if the tutor reverses their decision and changes it back to not complete, the gradebook isn't updated, nor is the activity completion updated.
Is there a way to get this to update, as and when the field is updated?