diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinition.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinition.json
index d85e52a4f545..be0edc4cc58e 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinition.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinition.json
@@ -8,27 +8,26 @@
     "200": {
       "body": {
         "properties": {
-          "description": "Test",
           "managedByTenantId": "83ace5cd-bcc3-441a-hd86-e6a75360cecc",
-          "registrationDefinitionName": "DefinitionName",
           "authorizations": [
             {
               "principalId": "f98g86a2-4cc4-4e6d-ad47-b3e80a1bcdfc",
               "roleDefinitionId": "acdd72a7-3385-48ef-bd42-f606fba81ae7"
             }
           ],
-          "provisioningState": "Succeeded",
-          "managedByTenantName": "Test Tenant"
+          "offerDisplayName": "Marketplace Test Offer",
+          "publisherDisplayName": "Marketplace Test Publisher",
+          "planDisplayName": "Test Plan"
         },
         "plan": {
-          "name": "addesai-plan",
+          "name": "test-plan",
           "product": "test",
           "publisher": "marketplace-test",
           "version": "1.0.0"
         },
-        "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/registrationDefinitions/26c128c2-fefa-4340-9bb1-6e081c90ada2",
-        "type": "Microsoft.ManagedServices/registrationDefinitions",
-        "name": "26c128c2-fefa-4340-9bb1-6e081c90ada2"
+        "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/marketplaceRegistrationDefinitions/marketplace-test.test.test-plan.1.0.0",
+        "type": "Microsoft.ManagedServices/marketplaceRegistrationDefinitions",
+        "name": "marketplace-test.test.test-plan.1.0.0"
       }
     }
   }
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinitions.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinitions.json
index 59623715d529..b511ed1128fd 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinitions.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetMarketplaceRegistrationDefinitions.json
@@ -10,27 +10,26 @@
         "value": [
           {
             "properties": {
-              "description": "Test",
               "managedByTenantId": "83ace5cd-bcc3-441a-hd86-e6a75360cecc",
-              "registrationDefinitionName": "DefinitionName",
               "authorizations": [
                 {
                   "principalId": "f98g86a2-4cc4-4e6d-ad47-b3e80a1bcdfc",
                   "roleDefinitionId": "acdd72a7-3385-48ef-bd42-f606fba81ae7"
                 }
               ],
-              "provisioningState": "Succeeded",
-              "managedByTenantName": "Test Tenant"
+              "offerDisplayName": "Marketplace Test Offer",
+              "publisherDisplayName": "Marketplace Test Publisher",
+              "planDisplayName": "Test Plan"
             },
             "plan": {
-              "name": "addesai-plan",
+              "name": "test-plan",
               "product": "test",
               "publisher": "marketplace-test",
               "version": "1.0.0"
             },
-            "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/registrationDefinitions/26c128c2-fefa-4340-9bb1-6e081c90ada2",
-            "type": "Microsoft.ManagedServices/registrationDefinitions",
-            "name": "26c128c2-fefa-4340-9bb1-6e081c90ada2"
+            "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/marketplaceRegistrationDefinitions/marketplace-test.test.test-plan.1.0.0",
+            "type": "Microsoft.ManagedServices/marketplaceRegistrationDefinitions",
+            "name": "marketplace-test.test.test-plan.1.0.0"
           }
         ]
       }
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
index b3a19710450b..4c0da88970ae 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
@@ -444,7 +444,7 @@
           "200": {
             "description": "OK - Returns the details of the marketplace registration definition.",
             "schema": {
-              "$ref": "#/definitions/RegistrationDefinition"
+              "$ref": "#/definitions/MarketplaceRegistrationDefinition"
             }
           },
           "default": {
@@ -779,13 +779,82 @@
       },
       "description": "List of registration assignments."
     },
+    "MarketplaceRegistrationDefinition": {
+      "properties": {
+        "properties": {
+          "description": "Properties of a marketplace registration definition.",
+          "$ref": "#/definitions/MarketplaceRegistrationDefinitionProperties"
+        },
+        "plan": {
+          "description": "Plan details for the managed services.",
+          "$ref": "#/definitions/Plan"
+        },
+        "id": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Fully qualified path of the marketplace registration definition."
+        },
+        "type": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Type of the resource."
+        },
+        "name": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Name of the marketplace registration definition."
+        }
+      },
+      "x-ms-azure-resource": true,
+      "type": "object"
+    },
+    "MarketplaceRegistrationDefinitionProperties": {
+      "properties": {
+        "managedByTenantId": {
+          "type": "string",
+          "description": "Id of the managedBy tenant."
+        },
+        "authorizations": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Authorization"
+          },
+          "description": "Authorization tuple containing principal id of the user/security group or service principal and id of the build-in role."
+        },
+        "eligibleAuthorizations": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/EligibleAuthorization"
+          },
+          "description": "Eligible PIM authorization tuple containing principal id of the user/security group or service principal, id of the built-in role, and just-in-time access policy setting"
+        },
+        "offerDisplayName": {
+          "type": "string",
+          "description": "The marketplace offer display name."
+        },
+        "publisherDisplayName": {
+          "type": "string",
+          "description": "The marketplace publisher display name."
+        },
+        "planDisplayName": {
+          "type": "string",
+          "description": "The marketplace plan display name."
+        }
+      },
+      "required": [
+        "managedByTenantId",
+        "authorizations"
+      ],
+      "type": "object",
+      "description": "Properties of a marketplace registration definition."
+    },
     "MarketplaceRegistrationDefinitionList": {
       "properties": {
         "value": {
           "type": "array",
           "readOnly": true,
           "items": {
-            "$ref": "#/definitions/RegistrationDefinition"
+            "$ref": "#/definitions/MarketplaceRegistrationDefinition"
           },
           "description": "List of marketplace registration definitions."
         },
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinition.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinition.json
index a8d48818f2a0..7d81dfc342fb 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinition.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinition.json
@@ -8,27 +8,26 @@
     "200": {
       "body": {
         "properties": {
-          "description": "Test",
           "managedByTenantId": "83ace5cd-bcc3-441a-hd86-e6a75360cecc",
-          "registrationDefinitionName": "DefinitionName",
           "authorizations": [
             {
               "principalId": "f98g86a2-4cc4-4e6d-ad47-b3e80a1bcdfc",
               "roleDefinitionId": "acdd72a7-3385-48ef-bd42-f606fba81ae7"
             }
           ],
-          "provisioningState": "Succeeded",
-          "managedByTenantName": "Test Tenant"
+          "offerDisplayName": "Marketplace Test Offer",
+          "publisherDisplayName": "Marketplace Test Publisher",
+          "planDisplayName": "Test Plan"
         },
         "plan": {
-          "name": "addesai-plan",
+          "name": "test-plan",
           "product": "test",
           "publisher": "marketplace-test",
           "version": "1.0.0"
         },
-        "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/registrationDefinitions/26c128c2-fefa-4340-9bb1-6e081c90ada2",
-        "type": "Microsoft.ManagedServices/registrationDefinitions",
-        "name": "26c128c2-fefa-4340-9bb1-6e081c90ada2"
+        "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/marketplaceRegistrationDefinitions/marketplace-test.test.test-plan.1.0.0",
+        "type": "Microsoft.ManagedServices/marketplaceRegistrationDefinitions",
+        "name": "marketplace-test.test.test-plan.1.0.0"
       }
     }
   }
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinitions.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinitions.json
index 39127fd4a5d3..bd2d422e11eb 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinitions.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/examples/GetMarketplaceRegistrationDefinitions.json
@@ -10,27 +10,26 @@
         "value": [
           {
             "properties": {
-              "description": "Test",
               "managedByTenantId": "83ace5cd-bcc3-441a-hd86-e6a75360cecc",
-              "registrationDefinitionName": "DefinitionName",
               "authorizations": [
                 {
                   "principalId": "f98g86a2-4cc4-4e6d-ad47-b3e80a1bcdfc",
                   "roleDefinitionId": "acdd72a7-3385-48ef-bd42-f606fba81ae7"
                 }
               ],
-              "provisioningState": "Succeeded",
-              "managedByTenantName": "Test Tenant"
+              "offerDisplayName": "Marketplace Test Offer",
+              "publisherDisplayName": "Marketplace Test Publisher",
+              "planDisplayName": "Test Plan"
             },
             "plan": {
-              "name": "addesai-plan",
+              "name": "test-plan",
               "product": "test",
               "publisher": "marketplace-test",
               "version": "1.0.0"
             },
-            "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/registrationDefinitions/26c128c2-fefa-4340-9bb1-6e081c90ada2",
-            "type": "Microsoft.ManagedServices/registrationDefinitions",
-            "name": "26c128c2-fefa-4340-9bb1-6e081c90ada2"
+            "id": "/subscriptions/0afefe50-734e-4610-8a82-a144ahf49dea/providers/Microsoft.ManagedServices/marketplaceRegistrationDefinitions/marketplace-test.test.test-plan.1.0.0",
+            "type": "Microsoft.ManagedServices/marketplaceRegistrationDefinitions",
+            "name": "marketplace-test.test.test-plan.1.0.0"
           }
         ]
       }
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/managedservices.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/managedservices.json
index e51fa6947178..308312c1b835 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/managedservices.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/stable/2019-09-01/managedservices.json
@@ -444,7 +444,7 @@
           "200": {
             "description": "OK - Returns the details of the marketplace registration definition.",
             "schema": {
-              "$ref": "#/definitions/RegistrationDefinition"
+              "$ref": "#/definitions/MarketplaceRegistrationDefinition"
             }
           },
           "default": {
@@ -765,13 +765,75 @@
       },
       "description": "List of registration assignments."
     },
+    "MarketplaceRegistrationDefinition": {
+      "properties": {
+        "properties": {
+          "description": "Properties of a marketplace registration definition.",
+          "$ref": "#/definitions/MarketplaceRegistrationDefinitionProperties"
+        },
+        "plan": {
+          "description": "Plan details for the managed services.",
+          "$ref": "#/definitions/Plan"
+        },
+        "id": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Fully qualified path of the marketplace registration definition."
+        },
+        "type": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Type of the resource."
+        },
+        "name": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Name of the marketplace registration definition."
+        }
+      },
+      "x-ms-azure-resource": true,
+      "type": "object"
+    },
+    "MarketplaceRegistrationDefinitionProperties": {
+      "properties": {
+        "managedByTenantId": {
+          "type": "string",
+          "description": "Id of the managedBy tenant."
+        },
+        "authorizations": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Authorization"
+          },
+          "description": "Authorization tuple containing principal id of the user/security group or service principal and id of the build-in role."
+        },
+        "offerDisplayName": {
+          "type": "string",
+          "description": "The marketplace offer display name."
+        },
+        "publisherDisplayName": {
+          "type": "string",
+          "description": "The marketplace publisher display name."
+        },
+        "planDisplayName": {
+          "type": "string",
+          "description": "The marketplace plan display name."
+        }
+      },
+      "required": [
+        "managedByTenantId",
+        "authorizations"
+      ],
+      "type": "object",
+      "description": "Properties of a marketplace registration definition."
+    },
     "MarketplaceRegistrationDefinitionList": {
       "properties": {
         "value": {
           "type": "array",
           "readOnly": true,
           "items": {
-            "$ref": "#/definitions/RegistrationDefinition"
+            "$ref": "#/definitions/MarketplaceRegistrationDefinition"
           },
           "description": "List of marketplace registration definitions."
         },