Follow my blog for more interesting topics on Dynamics 365, Portals and Power Platform. For training and consulting, write to us at info@xrmforyou.com I have wrote quite a few articles over the last one year to query Dynamics Web API using ADAL from client side and as well as server side. However lately I am receiving … Continue reading 401. Unauthorized error while querying Dynamics 365 Web Api from external application. Follow these steps to avoid the error