its good to be here. I am a Business Conultant for Dynamics AX 2012 R3. Today my customer stumbles over an interesting “Bug” I ve never seen before. After the creation of a user in System administration > Common > Users > User , the user logged in and another user with the same Alias has been created by the system only the UserID looks slightly different (instead of the last number of the user ID the systems throws the letter D). So right now we have several user in the system with the same Alias but a different User ID in the system. Any ideas why AX creates these"duplicate" users ? Search function didnt show up anything.