If you are interested to change your programme to a one-year master, you have to apply to the course Degree project in Business Administration (master) 4FE25E via www.universityadmissions.se. You find information how to apply on Mymoodle, Information from the School of Business and Economics/Apply to programme course spring 2020.
https://mymoodle.lnu.se/course/view.php?id=14147
The last day for application is Friday 13 of March 2020.