CONGRATS! HOW TO DOWNLOAD YOUR LEAN SIX SIGMA WHITE BELT E-LEARNING CERTIFICATE Step 1 Step 2 In case of a system bug, you can always re-sign up using a different email address.Before doing that, clear your history, cache, and cookies and retry if you’re able to download the certificate. CAN I ADD MY CERTIFICATE ON LINKEDIN? To do this, you must first log in to your LinkedIn profile.Click on “Add Section” OR scroll down to “Licenses and Certifications.”