# Set a membership's end date

`PATCH /fapi/v1/organizations/{org_id}/memberships/{membership_id}` · called from the environment's sign-in host

Sets or clears the date a membership ends (`expires_at`), for an organization profile screen. When the date passes, the membership is removed and the member's sessions and tokens in this organization's context are revoked. A `membership_expiry_warned` event is published seven days before. Roles change through [Set a member's roles](/docs/api/fapi/organizations/memberships/set-roles); this endpoint changes only the end date.

Requires the authenticated user's `__Host-idp_session` cookie with an exact `Origin`, or a first-party app's front API access token (`Authorization: DPoP <token>` with a DPoP proof; see [Front API access token](/docs/api/fapi/front-api-token)). The user must be an active member of the organization with both the `idp_members:update_roles` and `idp_members:remove` permissions. A user who is not a member gets `404 not_found`; a member without both permissions gets `403 insufficient_permissions`. You cannot change your own membership here (`403 insufficient_permissions`), and only a member who holds the admin role can change a member who holds a privileged role (`403 role_not_assignable`).

With `@keenauth/js`: `await keenauth.organizations.setMemberExpiry(orgId, membershipId, "2027-03-31T00:00:00Z", { expectedVersion: 3 })`; pass `null` to clear the date.

## Request

Headers:

| Header | Required | Description |
| --- | --- | --- |
| `Idp-Client` | yes | SDK identifier. |
| `Origin` | yes, with the cookie | `https://<sign-in host>`. |
| `If-Match` | no | One version, `"<version>"`, from the member list. A version that does not match, or more than one version, returns `412 precondition_failed`. |

`org_id`: the organization identifier (`org_…`). `membership_id`: the membership identifier (`mem_…`).

Body: `{"expires_at": "<RFC 3339 time>"}` or `{"expires_at": null}` to clear the date. `expires_at` is required. The time must be in the future and at most 365 days after the membership was created.

## Response

`200 OK` with the membership (the same fields as an item of [the member list](/docs/api/fapi/organizations/memberships/list)) and `ETag: "<version>"`.

## Errors

| Status | Code | When |
| --- | --- | --- |
| 400 | `unknown_field` | The body has a field other than `expires_at`. |
| 400 | `malformed_request` | `If-Match` is malformed. |
| 401 | `unauthenticated` | No valid session cookie or token. |
| 403 | `insufficient_permissions` | The user lacks `idp_members:update_roles` or `idp_members:remove`, or the membership is the user's own. |
| 403 | `role_not_assignable` | The member holds a privileged role and the user does not hold the admin role. |
| 403 | `origin_not_allowed` | The `Origin` does not match. |
| 404 | `not_found` | No such organization or membership for this user; an unknown, malformed or foreign identifier answers the same. |
| 409 | `organization_disabled` | The organization is disabled or pending deletion (`organization_pending_deletion`). |
| 412 | `precondition_failed` | `If-Match` does not name the membership's current version. |
| 422 | `validation_failed` | `expires_at` is missing, not an RFC 3339 time, in the past, or more than 365 days after the membership was created. |
| 503 | `service_unavailable` | Temporarily unavailable; retry after `Retry-After`. |

## Example

```bash
curl -X PATCH "https://example.keenauth.app/fapi/v1/organizations/org_01jbz6x8kq3m2n4p5r6s7t8v9a/memberships/mem_01jbz6x8kq3m2n4p5r6s7t8v9b" \
  -H "Idp-Client: my-app/1.0.0 (node/22.0.0)" \
  -H "Origin: https://example.keenauth.app" \
  -H 'If-Match: "3"' \
  -H "Content-Type: application/json" \
  -b cookies.txt \
  -d '{"expires_at": "2027-03-31T00:00:00Z"}'
```

```json
{
  "id": "mem_01jbz6x8kq3m2n4p5r6s7t8v9b",
  "user_id": "usr_01jbz6x8kq3m2n4p5r6s7t8v9c",
  "status": "active",
  "roles": [{ "role_id": "rol_01jbz6x8kq3m2n4p5r6s7t8v9w", "source": "admin_api" }],
  "created_at": "2026-11-03T09:00:00Z",
  "activated_at": "2026-11-03T09:00:00Z",
  "updated_at": "2026-11-03T11:00:00Z",
  "version": 4
}
```

## Personal data

This endpoint carries personal data: organization memberships and invitations. [Personal data in the KeenAuth APIs](/docs/policies/personal-data) describes what is stored, how long it is kept and how it is deleted. Do not send special categories of personal data (health, biometric data, religion, political opinions, sexual orientation) in any field.