in SampleCPMProject/CpmClient/AadAuthentication.cs [12:17]
static AadAuthentication()
{
X509Certificate2 cert = GetCertificateFromStore(ConfigurationManager.AppSettings["Thumbprint"]);
context = new AuthenticationContext(ConfigurationManager.AppSettings["AadInstance"] + ConfigurationManager.AppSettings["TenantId"]);
credentials = new ClientAssertionCertificate(ConfigurationManager.AppSettings["ClientId"], cert);
}