Hello @Emmanouilidis, Panos
It seems like you are having trouble logging into Azure Data Factory due to Azure Active Directory only authentication being enabled.
In this case, you will need to contact your system administrator to resolve the issue.
If you are not sure who your system administrator is, you can try reaching out to your IT department or the person who manages your Azure subscription. They should be able to provide you with the necessary permissions or direct you to the appropriate person who can help you with this issue.