Thank you for your interest in working for TOPdesk and for the time you spent with solving the task. This task is not the key criteria but only one of a couple of criteria that help us to optimize our selection process. Together with your CV, your cover letter and other information you send us, it helps us to get a clearer picture of your skills. So, it is possible that the solution you send us was not "wrong" but didn't complete the picture. I would also like to stress here that this rating is based solely on your experience with the assignment which is a very early step in our selection process preceding the actual interview.