diff --git a/mmv1/products/networkservices/MulticastDomain.yaml b/mmv1/products/networkservices/MulticastDomain.yaml
index 74f88959297d..77fe979d261e 100644
--- a/mmv1/products/networkservices/MulticastDomain.yaml
+++ b/mmv1/products/networkservices/MulticastDomain.yaml
@@ -119,6 +119,15 @@ properties:
       Use the following format:
       `projects/{project}/locations/global/multicastDomainGroups/{multicast_domain_group}`.
     immutable: true
+  - name: ullMulticastDomain
+    type: NestedObject
+    description: Information for an Ultra-Low-Latency multicast domain.
+    immutable: true
+    properties:
+      - name: preconfiguredUllDomain
+        type: String
+        description: The preconfigured Ultra-Low-Latency domain name.
+        immutable: true
   - name: name
     type: String
     description: |-
diff --git a/mmv1/third_party/terraform/services/networkservices/resource_network_services_multicast_domain_test.go b/mmv1/third_party/terraform/services/networkservices/resource_network_services_multicast_domain_test.go
index 95b9611dce00..3f18b09e07fe 100644
--- a/mmv1/third_party/terraform/services/networkservices/resource_network_services_multicast_domain_test.go
+++ b/mmv1/third_party/terraform/services/networkservices/resource_network_services_multicast_domain_test.go
@@ -85,3 +85,88 @@ resource "google_network_services_multicast_domain" md_test {
 }
 `, context)
 }
+
+func TestAccNetworkServicesMulticastDomain_networkServicesUllMulticastDomainUpdateExample(t *testing.T) {
+	t.Parallel()
+
+	context := map[string]interface{}{
+		"random_suffix": acctest.RandString(t, 10),
+	}
+
+	acctest.VcrTest(t, resource.TestCase{
+		PreCheck:                 func() { acctest.AccTestPreCheck(t) },
+		ProtoV5ProviderFactories: acctest.ProtoV5ProviderFactories(t),
+		CheckDestroy:             testAccCheckNetworkServicesMulticastDomainDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccNetworkServicesMulticastDomain_networkServicesUllMulticastDomainUpdateExample_full(context),
+			},
+			{
+				ResourceName:            "google_network_services_multicast_domain.md_test",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"labels", "location", "multicast_domain_id", "terraform_labels"},
+			},
+			{
+				Config: testAccNetworkServicesMulticastDomain_networkServicesUllMulticastDomainUpdateExample_diff(context),
+				ConfigPlanChecks: resource.ConfigPlanChecks{
+					PreApply: []plancheck.PlanCheck{
+						plancheck.ExpectResourceAction("google_network_services_multicast_domain.md_test", plancheck.ResourceActionUpdate),
+					},
+				},
+			},
+			{
+				ResourceName:            "google_network_services_multicast_domain.md_test",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"labels", "location", "multicast_domain_id", "terraform_labels"},
+			},
+		},
+	})
+}
+
+func testAccNetworkServicesMulticastDomain_networkServicesUllMulticastDomainUpdateExample_full(context map[string]interface{}) string {
+	return acctest.Nprintf(`
+resource "google_compute_network" "network" {
+  name                    = "tf-test-test-md-network%{random_suffix}"
+  auto_create_subnetworks = false
+}
+resource "google_network_services_multicast_domain" md_test {
+  multicast_domain_id = "tf-test-test-md-domain%{random_suffix}"
+  location = "global"
+  admin_network = google_compute_network.network.id
+  connection_config  {
+    connection_type="SAME_VPC"
+  }
+  ull_multicast_domain_config {
+    preconfigured_ull_domain = "e2e-test-internal-feed"
+  }
+  depends_on = [google_compute_network.network]
+}
+`, context)
+}
+
+func testAccNetworkServicesMulticastDomain_networkServicesUllMulticastDomainUpdateExample_diff(context map[string]interface{}) string {
+	return acctest.Nprintf(`
+resource "google_compute_network" "network" {
+  name                    = "tf-test-test-md-network%{random_suffix}"
+  auto_create_subnetworks = false
+}
+resource "google_network_services_multicast_domain" md_test {
+  multicast_domain_id = "tf-test-test-md-domain%{random_suffix}"
+  location = "global"
+  description = "A sample domain"
+  labels = {
+    label-one = "value-one"
+  }
+  admin_network = google_compute_network.network.id
+  connection_config  {
+    connection_type="SAME_VPC"
+  }
+  ull_multicast_domain_config {
+    preconfigured_ull_domain = "e2e-test-internal-feed"
+  }
+  depends_on = [google_compute_network.network]
+}
+`, context)
+}