Now choose, how the Outlook folders of the creator shold be imported.
Click on "Create new Outlook folders" to import all data into a new folder arm (e.g. Contacts -> "Outlook Group" Name\Contacts) and display it in addition to your current folders.
By clicking on "Import into existing folders" existing Outlook folders with the same name will be saved first as backup, and then replaced by the Outlook folders of the creator of the SYNCING.NET "Outlook Group", e.g. Contacts -> Contacts. The former replaced Outlook folders can be found in the new created folder arm "Backup_"Outlook Group" Name\...". You can delete this folder arm completely, after having checked, that you won't need the content anymore.