Connect FrameMaker to Sharepoint

I want to connect unstructured FrameMaker with Sharepoint. In Choose Connection, I select Sharepoint. Name is SP. As Server I have tried all possible options. There may be something wrong with the address but I can't figure out what it may be. As we have not yet implemented Sharepoint to the entire company, we - as key users - are playing a bit in a sandbox. The link looks like https://elster365.sharepoint.com/sites/electricity/sandbox/SitePages/Home.aspx. I have tried https://elster365.sharepoint.com/sites/electricity/sandbox/SitePages/Home.aspx and https://elster365.sharepoint.com/sites/electricity/sandbox/SitePages and https://elster365.sharepoint.com/sites/electricity/sandbox and https://elster365.sharepoint.com/sites/electricity and https://elster365.sharepoint.com/sites and https://elster365.sharepoint.com. In user name and password I have entered my credentials that are otherwise working fine. In some cases, it says that the location was not found. That could still make sense to me. However, in other case, there is just nothing happening except for the password being cleared. In any case, the connection is not added. In the example for server, it says http://server:port). Is there some kind of port that needs to be added?