Here is the sample code to import certificate from Key Vault
try{ string clientId = ""; string clientSecret = ""; string tenantId = ""; string subscriptionId = ""; string resourceGroupName = "sixshotRG"; string websiteName = "sixshot"; string certName = "MyCertName"; string keyVaultId = "/subscriptions/[Key Vault subscription id]/resourcegroups/[key vault resource group name]/providers/microsoft.keyvault/vaults/[key vault name]"; string keyVaultSecretName = "[Key Vault secret or cert name]"; AzureOperationResponse updateCertificateResult; var credentials = new AzureCredentialsFactory().FromServicePrincipal(clientId, clientSecret, tenantId, AzureEnvironment.AzureGlobalCloud); var azure = Azure .Configure() .Authenticate(credentials) .WithDefaultSubscription(); IWebAppsOperations ops = azure.WebApps.Inner; RestClient restClient = RestClient .Configure() .WithEnvironment(AzureEnvironment.AzureGlobalCloud) //.WithLogLevel(HttpLoggingDelegatingHandler.Level.BodyAndHeaders) .WithCredentials(credentials) .Build(); var client = new WebSiteManagementClient(restClient) { SubscriptionId = subscriptionId }; var appDetails = await client.WebApps.GetAsync(resourceGroupName, websiteName); var certificateInner = new CertificateInner { KeyVaultId = keyVaultId, KeyVaultSecretName = keyVaultSecretName, Location = appDetails.Location, ServerFarmId = appDetails.ServerFarmId, Password ="" }; updateCertificateResult = await client.Certificates .CreateOrUpdateWithHttpMessagesAsync( resourceGroupName, certName, certificateInner);}catch(Exception ex){ Console.Write(ex.Message);}