Natalia,I was having the same problem and may have a fix for you.Using Wireshark and Fiddler, we were able to find the login request url that Power BI Desktop uses. It starts with something like:"https://ims-na1.adobelogin.com/ims/authorize/v1?client_id=MarketingCloudWS1&redirect_uri=https....."Taki...