Porblems getting started wit Arc GIS Pro

[Philipp_Bjarsch]

This is driving me nuts. I have bought a license for ArcGIS Desktop for Personal Use.

i managed to set up ArcMap after creating a activation file in myEsri.

However, I fail to set up Arc GIS Pro . Whenever I try to login after starting Arc GIS Pro with the profile I bought the license with I get the error "the username you entered is not a member of this organization". I've tried to google this message and use the help site of ESRI but this lincensing process is next level confusing.

Can someone give me a tip?

[AdrianWelsh]

What happens when you go to the Project tab:

And then open up Portals?

Can you add a portal and/or login from there? If you're adding a portal, I would suggest just adding "https://www.arcgis.com". 

[Philipp_Bjarsch]

Thanks for you answer Adrian. Unfortunately I don't even get to this point. Before the program is opening a login window is opening up. That's where I am stuck.

[AdrianWelsh]

When you try logging into ArcGIS Pro, are you using the user name that you are using here (the Philipp_Bjarsch?) Or did you get a new username that you need to enter for this login?