We have content manager account which has been granted to access to all channels we have. We do authorization procedure for each service accounts to get access tokens for analytics-API, it works well, but it also demands when new channel is added.
Is it possible that issuing an access token via client id of content manager account, and use it to call API to access all channels that content manager account handles?
I found that I can call api with id set 'contentOnwer==id_of_content_manager'. And it is able to access to all data from channels this account manages.