Using Teamviewer AD Connect with AWS Directory Services

Hi all

I tried to setup AD Connect in liaison with AWS Directory Services using the below article

https://community.teamviewer.com/t5/Knowledge-Base-EN/Active-Directory-Connector-AD-Connector/ta-p/31158#toc-hId-443539480

Unfortunately User Synchronization was not successful even though the API token works and the AD Group selected exists. (Used drop down box to select).

Is there a trick to get this working? Google did not provide me with a suitable answer so hoping someone else may have successfully done this in the past.

AWS Directory Services limit permissions to an extend, so it may be wanting to setup something not possible using this AWS service?

Thanks in advance for guidance.