diff --git a/auth/manage_users.js b/auth/manage_users.js
index 46521d62..6e70ddae 100644
--- a/auth/manage_users.js
+++ b/auth/manage_users.js
@@ -48,6 +48,17 @@ admin
   });
 // [END get_user_by_phone]
 
+// [START get_user_by_federated_id]
+admin.auth().getUserByProviderUid('google.com', 'google_uid1234')
+  .then(function(userRecord) {
+    // See the UserRecord reference doc for the contents of userRecord.
+    console.log('Successfully fetched user data:', userRecord.toJSON());
+  })
+  .catch(function(error) {
+    console.log('Error fetching user data:', error);
+  });
+// [END get_user_by_federated_id]
+
 // [START bulk_get_users]
 admin
   .auth()
@@ -132,6 +143,37 @@ admin
   });
 // [END update_user]
 
+// [START update_user_link_federated]
+// Link the user with a federated identity provider (like Google).
+admin.auth().updateUser(uid, {
+    providerToLink: {
+      providerId: 'google.com',
+      uid: 'google_uid12345'
+    }
+  })
+  .then(function(userRecord) {
+    // See the UserRecord reference doc for the contents of userRecord.
+    console.log('Successfully updated user', userRecord.toJSON());
+  })
+  .catch(function(error) {
+    console.log('Error updating user:', error);
+  });
+// [END update_user_link_federated]
+
+// [START update_user_unlink_federated]
+// Unlink the user from a federated identity provider (like Google).
+admin.auth().updateUser(uid, {
+    providersToDelete: ['google.com']
+  })
+  .then(function(userRecord) {
+    // See the UserRecord reference doc for the contents of userRecord.
+    console.log('Successfully updated user', userRecord.toJSON());
+  })
+  .catch(function(error) {
+    console.log('Error updating user:', error);
+  });
+// [END update_user_unlink_federated]
+
 // [START delete_user]
 admin
   .auth()
diff --git a/auth/tenant_management.js b/auth/tenant_management.js
new file mode 100644
index 00000000..a3d3858e
--- /dev/null
+++ b/auth/tenant_management.js
@@ -0,0 +1,71 @@
+const admin = require('firebase-admin');
+admin.initializeApp();
+
+const tenantId = 'tenantId';
+
+function createTenant() {
+  // [START auth_create_tenant]
+  admin.auth().tenantManager().createTenant({
+    displayName: 'myTenant1',
+    emailSignInConfig: {
+      enabled: true,
+      // Email link sign-in enabled.
+      passwordRequired: false, 
+    },
+  })
+  .then((createdTenant) => {
+    console.log(createdTenant.toJSON());
+  })
+  .catch((error) => {
+    // Handle error.
+  });
+  // [END auth_create_tenant]
+}
+
+function updateTenant() {
+  // [START auth_update_tenant]
+  admin.auth().tenantManager().updateTenant(tenantId, {
+    displayName: 'updatedName',
+    emailSignInConfig: {
+      // Disable email provider.
+      enabled: false, 
+    },
+    // Enable anonymous sign-in
+    anonymousSignInEnabled: true,
+  })
+  .then((updatedTenant) => {
+    console.log(updatedTenant.toJSON());
+  })
+  .catch((error) => {
+    // Handle error.
+  });
+  // [END auth_update_tenant]
+}
+
+function deleteTenant() {
+  // [START auth_delete_tenant]
+  admin.auth().tenantManager().deleteTenant(tenantId)
+    .then(() => {
+      // Tenant deleted.
+    })
+    .catch((error) => {
+      // Handle error.
+    });
+  // [END auth_delete_tenant]
+}
+
+// [START auth_list_all_tenants]
+function listAllTenants(nextPageToken) {
+  return admin.auth().tenantManager().listTenants(100, nextPageToken)
+    .then((result) => {
+      result.tenants.forEach((tenant) => {
+        console.log(tenant.toJSON());
+      });
+      if (result.pageToken) {
+        return listAllTenants(result.pageToken);
+      }
+    });
+}
+
+listAllTenants();
+// [END auth_list_all_tenants]