I have a flow that uses a Custom Connector because we have MFA enabled and a pr. user license. The flow is supposed to create a Notebook and add it as a tab on the General channel on a team. The problem is, that I'm getting the error "Invalid version: https:" but I don't know which url is the problem. I hope you can help.

Additional info:
Add TAB URI
https://graph.microsoft.com/v1.0/teams/345f05fb-181e-45aa-9b89-1b70e17d0ef1/channels/19:RokO6-5gUkI1AtbBUOnTPl0POkghwQV0Etwhc5mYC4c1@thread.tacv2/tabs
Notebook URL (To be used as Website URL)
https://MYDOMAIN.sharepoint.com/sites/TestNotebook/Shared%20Documents/Notebooks/Test%20Notebook
Content URL
https://www.onenote.com/api/v1.0/myOrganization/siteCollections/68849b56-647d-4797-be3d-543303a541eb/sites/caeadb6d-0881-42d3-8e24-ae7f88bcaf22/notes/pages/1-4c1f0c63337d4146bc1772169f82d5bb!11-812613b9-22f1-4af3-97f1-12a914cc865a/content
I found out that the content URL could be retrieved like this:

The custom connector resembles the HTTP connector found here:

It is worth mentioning that the guide that I have linked to above is old and uses URLs that cannot be used anymore. In other posts refers to this powershell script thet shows the "new" correct contentURL structure. As stated above I have found a way to retrieve it by using the Noebook connector "Get pages for a specific section". I asume that this is OK?
If you have any questions please ask. I need to resolve this 🙂