---
title: "Update channel"
method: PATCH
path: "/v1/contacts/{contactId}/channels/{channelId}"
---

# Update channel

`PATCH /v1/contacts/{contactId}/channels/{channelId}`

Update a contact's channel properties.

## Path parameters

- `contactId` string, required
- `channelId` string, required

## Request body

- UpdateChannelRequest — Request body to update a channel.
  - `label` string, nullable — Optional label for the channel. Set to null to clear.
  - `verified` boolean — Whether the channel is verified.
  - `metadata` object

## Response `200`

Channel updated.

- ContactChannelResponse
  - `channel` ContactChannel, required — A communication channel for a contact.
    - `id` string, required
    - `channel` 'sms' | 'whatsapp' | 'email' | 'telegram' | 'instagram' | 'messenger' | 'voice', required — Channel type.
    - `identifier` string, required — Channel identifier (phone number or email address).
    - `countryCode` string — ISO country code for phone numbers.
    - `label` string — Optional label for the channel.
    - `isPrimary` boolean, required — Whether this is the primary channel for its type.
    - `verified` boolean, required — Whether this channel has been verified.
    - `metrics` object — Delivery metrics for this channel.
      - `successCount` integer
      - `failureCount` integer
      - `totalAttempts` integer
      - `avgDeliveryTimeMs` number
      - `lastSuccessAt` string, date-time
    - `lastInboundAt` string, date-time — Last time a message was received on this channel.
    - `metadata` object
    - `createdAt` string, date-time, required
    - `updatedAt` string, date-time

## Other responses

- `400` — Invalid request.
- `401` — Unauthorized.
- `404` — Contact or channel not found.

---

[API](https://skmtc.net/zavudev/apis/zavu-unified-messaging-layer-api.md) · [All operations](https://skmtc.net/zavudev/apis/zavu-unified-messaging-layer-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zavudev/zavu-unified-messaging-layer-api/revisions/4dacdff2adf8/schema)