Demos.Microsoft.com throws Not authorized error

If you are attempting to use https://demos.microsoft.com or https://cdx.transform.microsoft.com/ and get a “Not Authorized Error”

This is a frustrating issue to say in the least and hope this saves you the pain I had to go through to get it resolved.

For some reason the tenant level authorization gets cleared which can cause this problem.  Its happened to me twice now (still not sure what is causing it) however the fix is as follows:

https://login.microsoftonline.com/common/oauth2/authorize?response_type=id_token&prompt=consent&client_id=fe6aa35b-7da8-44fd-a44e-e2d4bafbdab5&redirect_uri=https%3A%2F%2Fcdx.transform.microsoft.com&state=a9985c9c-6c9a-4b65-a444-1e3aa90d27a4&client-request-id=6b3f4e71-ed02-406c-96f2-0a7e3c16ea98&x-client-SKU=Js&x-client-Ver=1.0.17&nonce=09492f5a-fb1a-412c-b24a-ba1704900924

Clicking on the above link will force the consent for the Transform workplace tools to occur allowing you to sign in again without this error.  You will need to be a tenant administrator to consent on behalf of your org or you can consent for your own account only. 

Hope this saves you hours of endless grief