In my organization, developers do not have authority to create Azure AD app registrations. However, the domain admins have created and provided a registration for me. Via the Teams app toolkit (via VS or VS Code), I cannot find a method for specifying the existing Azure AD app registration information and proceed with local debugging in Teams successfully. I'm new to development via the toolkit, so I'm attempting to simply debug the Tab HelloWorld app.
I tried creating a Teams App via the Developer Portal in Teams and using the Teams App Id, as well as the existing Azure AD App Id, to update the local manifest of the HelloWorld app and attempt to debug locally. VS opens the Teams web app, but Teams--nor the Helloworld app--load.