---
title: "Updates the policy for a certificate."
method: PATCH
path: "/certificates/{certificate-name}/policy"
tags: ["Certificates"]
---

# Updates the policy for a certificate.

`PATCH /certificates/{certificate-name}/policy`

Set specified members in the certificate policy. Leave others as null. This operation requires the certificates/update permission.

## Path parameters

- `certificate-name` string, required

## Query parameters

- `api-version` string, required

## Request body

- CertificatePolicy — Management policy for a certificate.
  - `id` string — The certificate id.
  - `key_props` KeyProperties — Properties of the key pair backing a certificate.
    - `exportable` boolean — Indicates if the private key can be exported.
    - `kty` 'EC' | 'EC-HSM' | 'RSA' | 'RSA-HSM' | 'oct' — The type of key pair to be used for the certificate.
    - `key_size` integer — The key size in bits. For example: 2048, 3072, or 4096 for RSA.
    - `reuse_key` boolean — Indicates if the same key pair will be used on certificate renewal.
    - `crv` 'P-256' | 'P-384' | 'P-521' | 'P-256K' — Elliptic curve name. For valid values, see JsonWebKeyCurveName.
  - `secret_props` SecretProperties — Properties of the key backing a certificate.
    - `contentType` string — The media type (MIME type).
  - `x509_props` X509CertificateProperties — Properties of the X509 component of a certificate.
    - `subject` string — The subject name. Should be a valid X509 distinguished Name.
    - `ekus` string[] — The enhanced key usage.
    - `sans` SubjectAlternativeNames — The subject alternate names of a X509 object.
      - `emails` string[] — Email addresses.
      - `dns_names` string[] — Domain names.
      - `upns` string[] — User principal names.
    - `key_usage` string[] — List of key usages.
    - `validity_months` integer — The duration that the certificate is valid in months.
  - `lifetime_actions` LifetimeAction[] — Actions that will be performed by Key Vault over the lifetime of a certificate.
    - `trigger` Trigger — A condition to be satisfied for an action to be executed.
      - `lifetime_percentage` integer — Percentage of lifetime at which to trigger. Value should be between 1 and 99.
      - `days_before_expiry` integer — Days before expiry to attempt renewal. Value should be between 1 and validity_in_months multiplied by 27. If validity_in_months is 36, then value should be between 1 and 972 (36 * 27).
    - `action` Action — The action that will be executed.
      - `action_type` 'EmailContacts' | 'AutoRenew' — The type of the action.
  - `issuer` IssuerParameters — Parameters for the issuer of the X509 component of a certificate.
    - `name` string — Name of the referenced issuer object or reserved names; for example, 'Self' or 'Unknown'.
    - `cty` string — Certificate type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'
    - `cert_transparency` boolean — Indicates if the certificates generated under this policy should be published to certificate transparency logs.
  - `attributes` CertificateAttributes — The object attributes managed by the KeyVault service.
    - `enabled` boolean — Determines whether the object is enabled.
    - `nbf` integer — Not before date in UTC.
    - `exp` integer — Expiry date in UTC.
    - `created` integer — Creation time in UTC.
    - `updated` integer — Last updated time in UTC.

## Response `200`

The certificate policy

- CertificatePolicy — Management policy for a certificate.
  - `id` string — The certificate id.
  - `key_props` KeyProperties — Properties of the key pair backing a certificate.
    - `exportable` boolean — Indicates if the private key can be exported.
    - `kty` 'EC' | 'EC-HSM' | 'RSA' | 'RSA-HSM' | 'oct' — The type of key pair to be used for the certificate.
    - `key_size` integer — The key size in bits. For example: 2048, 3072, or 4096 for RSA.
    - `reuse_key` boolean — Indicates if the same key pair will be used on certificate renewal.
    - `crv` 'P-256' | 'P-384' | 'P-521' | 'P-256K' — Elliptic curve name. For valid values, see JsonWebKeyCurveName.
  - `secret_props` SecretProperties — Properties of the key backing a certificate.
    - `contentType` string — The media type (MIME type).
  - `x509_props` X509CertificateProperties — Properties of the X509 component of a certificate.
    - `subject` string — The subject name. Should be a valid X509 distinguished Name.
    - `ekus` string[] — The enhanced key usage.
    - `sans` SubjectAlternativeNames — The subject alternate names of a X509 object.
      - `emails` string[] — Email addresses.
      - `dns_names` string[] — Domain names.
      - `upns` string[] — User principal names.
    - `key_usage` string[] — List of key usages.
    - `validity_months` integer — The duration that the certificate is valid in months.
  - `lifetime_actions` LifetimeAction[] — Actions that will be performed by Key Vault over the lifetime of a certificate.
    - `trigger` Trigger — A condition to be satisfied for an action to be executed.
      - `lifetime_percentage` integer — Percentage of lifetime at which to trigger. Value should be between 1 and 99.
      - `days_before_expiry` integer — Days before expiry to attempt renewal. Value should be between 1 and validity_in_months multiplied by 27. If validity_in_months is 36, then value should be between 1 and 972 (36 * 27).
    - `action` Action — The action that will be executed.
      - `action_type` 'EmailContacts' | 'AutoRenew' — The type of the action.
  - `issuer` IssuerParameters — Parameters for the issuer of the X509 component of a certificate.
    - `name` string — Name of the referenced issuer object or reserved names; for example, 'Self' or 'Unknown'.
    - `cty` string — Certificate type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'
    - `cert_transparency` boolean — Indicates if the certificates generated under this policy should be published to certificate transparency logs.
  - `attributes` CertificateAttributes — The object attributes managed by the KeyVault service.
    - `enabled` boolean — Determines whether the object is enabled.
    - `nbf` integer — Not before date in UTC.
    - `exp` integer — Expiry date in UTC.
    - `created` integer — Creation time in UTC.
    - `updated` integer — Last updated time in UTC.

## Other responses

- `default` — Key Vault error response describing why the operation failed.

---

[API](https://skmtc.net/azure/apis/keyvaultclient.md) · [All operations](https://skmtc.net/azure/apis/keyvaultclient/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/azure/keyvaultclient/revisions/1f612999ec40/schema)