Hi Devs! Being a dynamics developer, We normally have requirement of integration of MS dynamics with multple third party tool. Its common to register app when it comes to WHS mobile application too. lets start! First and foremost URL : https://portal.azure.com/#home Step #1: Select App registrations Step# 2: Register new application. Step# 3: Once app is created, add certificates and secrete. Copy and save the value. Step# 4: Adding API permissions Note: OData must be selected Happy Daxing!