Integrating SharePoint on Office 365 with RoboHelp HTML 11... is it possible?

Hi, I would like to know if it is possible to sync up RH11 with SharePoint on Office 365. I know RH and SP are compatible, but unsure whether it will work if SP is on Office 365. When I create a SP site on 365, I of course have full control. I go into RH11, in version control and try to add the website and I get an error - 'Error 403: The remote server returned an error: (403) Forbidden.' Is 365 and RH incompatible? If there's any resolution or confirmation that it will not work, please let me know. I've been at this for a few days now... thanks!