Hi Brad,
thanks a lot for your response and testing.
I'm with you: this process should be much easier. I struggled the first time at point 7 because there is no "Microsoft Office 365 Webservices" in our Moodle-Installation. I think I have to install the whole stuff of Microsoft Office 365 Integration to get this Webservice work. It's like installing a complete Office Suite when all I want to do is note
I'm not sure if it's worth it - we will see.
Anyway - thanks a lot for your help.
Kind regards
Christian