You could try exiting November without running and then run December. You should find that it will detect that November has no results and auto retro to November. But need to ensure you have not been in corrections for November, otherwise the system will say employees in error (which you can change the status of the individuals - if not too many).�
Another option is to delete the control record (if the above option doesn't work) and recreate to have next payroll in December but still with your original retro period.�
You should test these in your user acceptance system to ensure there are no side effects.�
