No special preparations are required for SugarCRM except CE version. If it is a CE then the file SoapSudo.php should be added into soap/ folder. Please, contact firstname.lastname@example.org to get required fix.
For SugarCRM connection you need SugarCRM url and administrator username/password.
URL should point to a top level folder. It may be taken from the web URL as follows. Look at the line in the web browser when logging into SugarCRM. It looks like:
Cut the trailing part starting from “index.php” and leaving the trailing “/” and you get the right URL, i.e. the correct URL is:
SugarCRM login name of the user with administrator privileges (normally ‘admin’). Synchronizer uses impersonation to switch between individual users.