Hi Mythili,
I faced similar issue sometime ago, this is to do with access rules on Account entity. Security is more strict in 7.23.3 so make sure you have correct access rules configured on account entity for Administrator role. Also, make sure in project security, you have administrator module role selected for system module and administrator can manage all other user roles as shown in the screenshot below.
Hope this helps!
Hi Mythili,
I had the same issue. Your problem is caused by the fact that you probably did not select the last role in the list of selectable user roles: ‘(No user roles)’
When using selected roles, you need to select ‘No user roles’ to be able to create new users.
This solved my issue!