User access should be able to be restricted to viewing such as for customer cards so data can be viewed but not edited.
Hello Sharron,
Throuhg the User Access screens you give a user complete Read Only access and in the various selections Read only to cards while open access to other functions.
Have a Look at this MYOB Support Note for details of how to manage access for users.
http://myobaustralia.custhelp.com/app/answers/detail/a_id/33733/kw/user%20access
Cheers
David