https://docs.loomesoftware.com/integrate-server/buildinglisolution/connectionsdatasetsfiledefinitions/connections/connectorshelp/youtube/index.html Introduction The Connector for YouTube gives developers the power to easily connect .NET applications to YouTube data, including Comments, Captions, Activities, and more. Connection String Youtube uses the OAuth Authentication. Additionally, set the Callback URL property. Set the OAuth Properties (OAuth Client ID and OAuth Client Secret) ,Developer Token and ClientCustomerId. Set the CallBack URL also for this Connector. Once the Callback URL is set the OAuthAccessToken will be generated in the Connection string when you verify the Connection using the VERIFY CONNECTION option. Hugo en-US