diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/createComputeInstance.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/createComputeInstance.json
index ff84d4308695..270cf1203436 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/createComputeInstance.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/createComputeInstance.json
@@ -15,6 +15,13 @@
           "applicationSharingPolicy": "Personal",
           "sshSettings": {
             "sshPublicAccess": "Disabled"
+          },
+          "computeInstanceAuthorizationType": "personal",
+          "personalComputeInstanceSettings": {
+            "assignedUser": {
+              "objectId": "00000000-0000-0000-0000-000000000000",
+              "tenantId": "00000000-0000-0000-0000-000000000000"
+            }
           }
         }
       }
diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/getComputeInstance.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/getComputeInstance.json
index c368311a4b38..fb9af3d62efe 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/getComputeInstance.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/examples/getComputeInstance.json
@@ -27,6 +27,13 @@
               "adminUserName": "azureuser",
               "sshPort": 22
             },
+            "computeInstanceAuthorizationType": "personal",
+            "personalComputeInstanceSettings": {
+              "assignedUser": {
+                "objectId": "00000000-0000-0000-0000-000000000000",
+                "tenantId": "00000000-0000-0000-0000-000000000000"
+              }
+            },
             "createdBy": {
               "userName": "foobar@microsoft.com",
               "userOrgId": "00000000-0000-0000-0000-000000000000",
diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/machineLearningServices.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/machineLearningServices.json
index a13a680b6c17..e14f9754f9bc 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/machineLearningServices.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2020-02-18-preview/machineLearningServices.json
@@ -2532,6 +2532,24 @@
                   "description": "The current state of this ComputeInstance.",
                   "$ref": "#/definitions/ComputeInstanceState",
                   "readOnly": true
+                },
+                "computeInstanceAuthorizationType": {
+                  "type": "string",
+                  "title": "Compute Instance Authorization type.",
+                  "description": "The Compute Instance Authorization type. Available values are personal (default).",
+                  "default": "personal",
+                  "enum": [
+                    "personal"
+                  ],
+                  "x-ms-enum": {
+                    "name": "ComputeInstanceAuthorizationType",
+                    "modelAsString": true
+                  }
+                },
+                "personalComputeInstanceSettings": {
+                  "title": "Personal Compute Instance settings.",
+                  "description": "Settings for a personal compute instance.",
+                  "$ref": "#/definitions/PersonalComputeInstanceSettings"
                 }
               }
             }
@@ -3602,6 +3620,35 @@
           "description": "Uniquely identifies the user within his/her organization."
         }
       }
+    },
+    "PersonalComputeInstanceSettings": {
+      "type": "object",
+      "properties": {
+        "assignedUser": {
+          "$ref": "#/definitions/AssignedUser",
+          "title": "Assigned User.",
+          "description": "A user explicitly assigned to a personal compute instance."
+        }
+      },
+      "description": "Settings for a personal compute instance."
+    },
+    "AssignedUser": {
+      "type": "object",
+      "description": "A user that can be assigned to a compute instance.",
+      "properties": {
+        "objectId": {
+          "type": "string",
+          "description": "User’s AAD Object Id."
+        },
+        "tenantId": {
+          "type": "string",
+          "description": "User’s AAD Tenant Id."
+        }
+      },
+      "required": [
+        "objectId",
+        "tenantId"
+      ]
     }
   }
 }