404 error - Microfocus Connect not able to Azure DevOps

Dear community,

I would like to sync data form Azure DevOps to ALM.

Therefore I downloaded Microfocus Connect Core and I also added Microsoft Azure DevOps Connector 4.4.1 

When I open Microfocus Connect and want to configure the adapter I enter azure URL, username and PAT.

After that I receive the following error: (I have removed my project specific information in the URL)

2021-07-28T14:36:50,701 ERROR (Rest-10) [BasicHTTP(processError:81)] responseCode:404 URL:dev.azure.com/.../workItems
2021-07-28T14:36:50,703 ERROR (Rest-10) [BasicHTTP(processError:117)] Throwing
com.connect.api.exceptions.HTTPException: Page not found
    at com.connect.api.utils.HttpExceptionFactory.create(HttpExceptionFactory.java:12) ~[mfcConnectorInterface-4.4.1.jar:372]
    at com.connect.tfs.rest.BasicHTTP.processError(BasicHTTP.java:115) ~[?:?]
    at com.connect.tfs.rest.BasicHTTP.processError(BasicHTTP.java:56) ~[?:?]
    at com.connect.tfs.rest.TFSRest.checkVersionSupportOfResource(TFSRest.java:188) ~[?:?]
    at com.connect.tfs.rest.TFSRest.checkVersionSupport(TFSRest.java:130) ~[?:?]
    at com.connect.tfs.rest.TFSRest.getVersion(TFSRest.java:95) ~[?:?]
    at com.connect.tfs.rest.TFSRest.<init>(TFSRest.java:48) ~[?:?]

Based on the API dosumentation on Azure side this specific operation is not available.

Any idea what is required here?

Kind regards