When trying to select objects to be migrated a message appears "Limit exceeded 2000 objects loaded", the message is displayed in the window "Browse source domain" when selecting objects in source domain.
This limitation is similar to AD limitation when you can see only 2000 objects in one OU.
Please verify in AD Users and Computers that all users are being displayed, this can be achieved by using the menu: View - Filter Options - and increasing "Maximum number of items displayed per folder". Then close QMM and modify this registry setting:
by increasing the value.
NOTE: For 64 bit OS there will be additional Wow6432Node key under Software.
****WARNING: Using Registry Editor incorrectly can cause serious problems that can damage the operating system and the software installed. Quest cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.***