Hello All, I am upgrading data from 3.0 to 4.0. In 3.0 ,i have three company. I have created new blank database in ax4.0 and copy 3.0 data to that blank database.Then started AOS and run Upgrade checklist. When i m running Precynchronize upgrade system throwing error, "only one data upgrade cockpit allowed" and "cannot select userinformation from SysUserInfo" table. Please anyone help me.Its very urgent. thanks Asit
