diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/CommonDefinitions.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/CommonDefinitions.json
index d72fd53528c6..56b0255a21d5 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/CommonDefinitions.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/CommonDefinitions.json
@@ -968,6 +968,101 @@
           "description": "Application-specific metadata in the form of key-value pairs."
         }
       }
+    },
+    "ManagedCertificate": {
+      "description": "Managed certificates used for Custom Domain bindings of Container Apps in a Managed Environment",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "../../../../../common-types/resource-management/v3/types.json#/definitions/TrackedResource"
+        }
+      ],
+      "properties": {
+        "properties": {
+          "description": "Certificate resource specific properties",
+          "type": "object",
+          "properties": {
+            "provisioningState": {
+              "description": "Provisioning state of the certificate.",
+              "enum": [
+                "Succeeded",
+                "Failed",
+                "Canceled",
+                "DeleteFailed",
+                "Pending"
+              ],
+              "type": "string",
+              "readOnly": true,
+              "x-ms-enum": {
+                "name": "CertificateProvisioningState",
+                "modelAsString": true
+              }
+            },
+            "subjectName": {
+              "description": "Subject name of the certificate.",
+              "type": "string"
+            },
+            "error": {
+              "description": "Any error occurred during the certificate provision.",
+              "type": "string",
+              "readOnly": true
+            },
+            "domainControlValidation": {
+              "description": "Selected type of domain control validation for managed certificates.",
+              "enum": [
+                "CNAME",
+                "HTTP",
+                "TXT"
+              ],
+              "type": "string",
+              "x-ms-enum": {
+                "name": "ManagedCertificateDomainControlValidation",
+                "modelAsString": true
+              }
+            },
+            "validationToken": {
+              "description": "A TXT token used for DNS TXT domain control validation when issuing this type of managed certificates.",
+              "type": "string",
+              "readOnly": true
+            }
+          }
+        }
+      },
+      "x-ms-client-flatten": true
+    },
+    "ManagedCertificatePatch": {
+      "description": "A managed certificate to update",
+      "type": "object",
+      "properties": {
+        "tags": {
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Application-specific metadata in the form of key-value pairs."
+        }
+      }
+    },
+    "ManagedCertificateCollection": {
+      "description": "Collection of Managed Certificates.",
+      "required": [
+        "value"
+      ],
+      "type": "object",
+      "properties": {
+        "value": {
+          "description": "Collection of resources.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ManagedCertificate"
+          }
+        },
+        "nextLink": {
+          "description": "Link to next page of resources.",
+          "type": "string",
+          "readOnly": true
+        }
+      }
     }
   },
   "securityDefinitions": {
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/ManagedEnvironments.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/ManagedEnvironments.json
index 2b0d5e997295..ac59098ea6dc 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/ManagedEnvironments.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/ManagedEnvironments.json
@@ -591,6 +591,298 @@
         }
       }
     },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.App/managedEnvironments/{environmentName}/managedCertificates/{managedCertificateName}": {
+      "get": {
+        "tags": [
+          "ManagedEnvironments",
+          "ManagedCertificates"
+        ],
+        "summary": "Get the specified Managed Certificate.",
+        "operationId": "ManagedCertificates_Get",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "name": "environmentName",
+            "in": "path",
+            "description": "Name of the Managed Environment.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateName",
+            "in": "path",
+            "description": "Name of the Managed Certificate.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificate"
+            }
+          },
+          "default": {
+            "description": "Error response.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/DefaultErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Get Certificate": {
+            "$ref": "./examples/ManagedCertificate_Get.json"
+          }
+        }
+      },
+      "put": {
+        "tags": [
+          "ManagedEnvironments",
+          "ManagedCertificates"
+        ],
+        "summary": "Create or Update a Managed Certificate.",
+        "operationId": "ManagedCertificates_CreateOrUpdate",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "name": "environmentName",
+            "in": "path",
+            "description": "Name of the Managed Environment.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateName",
+            "in": "path",
+            "description": "Name of the Managed Certificate.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateEnvelope",
+            "in": "body",
+            "description": "Managed Certificate to be created or updated",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificate"
+            }
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificate"
+            }
+          },
+          "201": {
+            "description": "Created",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificate"
+            }
+          },
+          "400": {
+            "description": "Bad Request.",
+            "x-ms-error-response": true
+          },
+          "default": {
+            "description": "Error response.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/DefaultErrorResponse"
+            }
+          }
+        },
+        "x-ms-long-running-operation": true,
+        "x-ms-long-running-operation-options": {
+          "final-state-via": "azure-async-operation"
+        },
+        "x-ms-examples": {
+          "Create or Update Certificate": {
+            "$ref": "./examples/ManagedCertificate_CreateOrUpdate.json"
+          }
+        }
+      },
+      "delete": {
+        "tags": [
+          "ManagedEnvironments",
+          "ManagedCertificates"
+        ],
+        "summary": "Deletes the specified Managed Certificate.",
+        "operationId": "ManagedCertificates_Delete",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "name": "environmentName",
+            "in": "path",
+            "description": "Name of the Managed Environment.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateName",
+            "in": "path",
+            "description": "Name of the Managed Certificate.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Delete operation completed"
+          },
+          "204": {
+            "description": "Certificate does not exist"
+          },
+          "default": {
+            "description": "Error response.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/DefaultErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Delete Certificate": {
+            "$ref": "./examples/ManagedCertificate_Delete.json"
+          }
+        }
+      },
+      "patch": {
+        "tags": [
+          "ManagedEnvironments",
+          "ManagedCertificates"
+        ],
+        "summary": "Update tags of a managed certificate",
+        "description": "Patches a managed certificate. Oly patching of tags is supported",
+        "operationId": "ManagedCertificates_Update",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "name": "environmentName",
+            "in": "path",
+            "description": "Name of the Managed Environment.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateName",
+            "in": "path",
+            "description": "Name of the Managed Certificate.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "managedCertificateEnvelope",
+            "in": "body",
+            "required": true,
+            "description": "Properties of a managed certificate that need to be updated",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificatePatch"
+            }
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Managed Certificate updated successfully.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificate"
+            }
+          },
+          "default": {
+            "description": "Common error response.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/DefaultErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Patch Certificate": {
+            "$ref": "./examples/ManagedCertificates_Patch.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.App/managedEnvironments/{environmentName}/managedCertificates": {
+      "get": {
+        "tags": [
+          "ManagedEnvironments",
+          "ManagedCertificates"
+        ],
+        "summary": "Get the Managed Certificates in a given managed environment.",
+        "operationId": "ManagedCertificates_List",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "name": "environmentName",
+            "in": "path",
+            "description": "Name of the Managed Environment.",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/ManagedCertificateCollection"
+            }
+          },
+          "default": {
+            "description": "Error response.",
+            "schema": {
+              "$ref": "./CommonDefinitions.json#/definitions/DefaultErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "List Managed Certificates by Managed Environment": {
+            "$ref": "./examples/ManagedCertificates_ListByManagedEnvironment.json"
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        }
+      }
+    },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.App/managedEnvironments/{environmentName}/checkNameAvailability": {
       "post": {
         "tags": [
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_CreateOrUpdate.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_CreateOrUpdate.json
new file mode 100644
index 000000000000..26d41bdd1ee5
--- /dev/null
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_CreateOrUpdate.json
@@ -0,0 +1,50 @@
+{
+  "parameters": {
+    "subscriptionId": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
+    "resourceGroupName": "examplerg",
+    "environmentName": "testcontainerenv",
+    "managedCertificateName": "certificate-firendly-name",
+    "api-version": "2022-11-01-preview",
+    "managedCertificateEnvelope": {
+      "location": "East US",
+      "properties": {
+        "subjectName": "my-subject-name.company.country.net",
+        "domainControlValidation": "CNAME"
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "headers": {},
+      "body": {
+        "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name",
+        "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+        "location": "East US",
+        "properties": {
+          "subjectName": "CN=my-subject-name.company.country.net",
+          "provisioningState": "Succeeded",
+          "domainControlValidation": "CNAME"
+        }
+      }
+    },
+    "201": {
+      "headers": {
+        "azure-asyncoperation": "https://management.azure.com/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/locations/eastus/managedCertificateOperationStatuses/dc27c9cd-370f-4623-95d4-827b6dc4120a?api-version=2022-06-01-preview&azureAsyncOperation=true"
+      },
+      "body": {
+        "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name",
+        "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+        "location": "East US",
+        "properties": {
+          "subjectName": "CN=my-subject-name.company.country.net",
+          "provisioningState": "Pending",
+          "domainControlValidation": "CNAME"
+        }
+      }
+    },
+    "400": {
+      "code": "ManagedCertNoUpdate",
+      "message": "Properties of managed certificates cannot be updated. Please delete the current resource and retry or use a different resource id."
+    }
+  }
+}
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Delete.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Delete.json
new file mode 100644
index 000000000000..aeb231c5b0c1
--- /dev/null
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Delete.json
@@ -0,0 +1,13 @@
+{
+  "parameters": {
+    "subscriptionId": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
+    "resourceGroupName": "examplerg",
+    "environmentName": "testcontainerenv",
+    "managedCertificateName": "certificate-firendly-name",
+    "api-version": "2022-11-01-preview"
+  },
+  "responses": {
+    "200": {},
+    "204": {}
+  }
+}
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Get.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Get.json
new file mode 100644
index 000000000000..5b991d2a6e95
--- /dev/null
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificate_Get.json
@@ -0,0 +1,24 @@
+{
+  "parameters": {
+    "subscriptionId": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
+    "resourceGroupName": "examplerg",
+    "environmentName": "testcontainerenv",
+    "managedCertificateName": "certificate-firendly-name",
+    "api-version": "2022-11-01-preview"
+  },
+  "responses": {
+    "200": {
+      "headers": {},
+      "body": {
+        "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name",
+        "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+        "location": "East US",
+        "properties": {
+          "subjectName": "CN=my-subject-name.company.country.net",
+          "provisioningState": "Succeeded",
+          "domainControlValidation": "CNAME"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_ListByManagedEnvironment.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_ListByManagedEnvironment.json
new file mode 100644
index 000000000000..fc75cb444975
--- /dev/null
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_ListByManagedEnvironment.json
@@ -0,0 +1,47 @@
+{
+  "parameters": {
+    "subscriptionId": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
+    "resourceGroupName": "examplerg",
+    "environmentName": "testcontainerenv",
+    "api-version": "2022-11-01-preview"
+  },
+  "responses": {
+    "200": {
+      "headers": {},
+      "body": {
+        "value": [
+          {
+            "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name",
+            "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+            "location": "East US",
+            "properties": {
+              "subjectName": "CN=my-subject-name.company.country.net",
+              "provisioningState": "Succeeded",
+              "domainControlValidation": "CNAME"
+            }
+          },
+          {
+            "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name-root",
+            "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+            "location": "East US",
+            "properties": {
+              "subjectName": "CN=company.country.net",
+              "provisioningState": "Succeeded",
+              "domainControlValidation": "HTTP"
+            }
+          },
+          {
+            "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name-txt",
+            "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+            "location": "East US",
+            "properties": {
+              "subjectName": "CN=txt.company.country.net",
+              "provisioningState": "Succeeded",
+              "domainControlValidation": "TXT"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_Patch.json b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_Patch.json
new file mode 100644
index 000000000000..88eb1bfef43b
--- /dev/null
+++ b/specification/app/resource-manager/Microsoft.App/preview/2022-11-01-preview/examples/ManagedCertificates_Patch.json
@@ -0,0 +1,30 @@
+{
+  "parameters": {
+    "subscriptionId": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
+    "resourceGroupName": "examplerg",
+    "environmentName": "testcontainerenv",
+    "managedCertificateName": "certificate-firendly-name",
+    "api-version": "2022-11-01-preview",
+    "managedCertificateEnvelope": {
+      "tags": {
+        "tag1": "value1",
+        "tag2": "value2"
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "headers": {},
+      "body": {
+        "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/examplerg/providers/Microsoft.App/managedEnvironments/testcontainerenv/managedCertificates/certificate-firendly-name",
+        "type": "Microsoft.App/ManagedEnvironments/managedCertificates",
+        "location": "East US",
+        "properties": {
+          "subjectName": "CN=my-subject-name.company.country.net",
+          "provisioningState": "Succeeded",
+          "domainControlValidation": "CNAME"
+        }
+      }
+    }
+  }
+}