This article will help you create new contacts in AD using the online portal. If you try to create a new contact using AD sync issues will arise and adding these new contacts to Groups will cause loss of information.
Step 1
Click or copy this hyperlink and login with your credentials, some use normal accounts and some use admin accounts.
https://mail.chrc.qld.gov.au/ecp/?ExchClientVer=15
Step 2
Fill in all the required details of this new contact.
Step 3
Search for your new contact in AD and go to members of to add the new user to any of the Distribution groups
This will help prevent loss of data when syncing to online exchange.