As a user you can upload certificates yourself. You do this by logging in to the academy, opening 'My leaning items' and clicking on 'Certificates'. All certificates that you obtain are gathered here. You can also download them and link them to LinkedIn from this summary.
By uploading a certificate you can also add certificates obtained outside of the academy. This can be a certificate you obtained through a classical course or a result from the past. This gives you the option of having one collection point for learning and development.