Simon Robinson

An invalid or unexpected response was provided by the server. This is the sort of thing that is best investigated via a test account in your O365. Is this something...

Thanks – in the end it was not something that required the test account, but a misconfiguration: you've used the wrong token url: ``` token_url = https://login.microsoftonline.com/###tenantID###/oauth2/v2.0/authorize ``` This value...