1.Get the list of all roles in say excel or notepad. Copy all roles (copy entire column in excel using Cntrl+C)
2. Login to system and go to SU10 tcode.
3. Click on 'Authorization data" tab in SU10
4. In next page you will see a tab called "role" --> select the arrow exactly to the right side for multiple selection.
5. In new window; there is an icon for "Upload from clipboard"(second last icon in bottom of window). Click on it and you will have the list of all users uploaded into SAP. In next window click on "select all" and "transfer"
Now go into su01 and check the roles assigned to user or not