# Update contact

> PATCH /v1/contacts/{contactId}

`PATCH https://api.zavu.dev/v1/contacts/{contactId}`

## Parameters

- `contactId` (path, string, required)

## Body

- `displayName` (string, nullable): Human-readable name for this contact. Set to null to clear it and fall back to the contact's identifier. Contacts created automatically from an inbound message have no display name until you set one.
- `defaultChannel` (string, nullable): Preferred channel for this contact. Set to null to clear. One of: `sms`, `whatsapp`, `telegram`, `email`, `instagram`, `messenger`, `voice`.
- `metadata` (object)
  - `{key}` (string)

## Responses

### 200

Contact updated.

- `id` (string, required)
- `displayName` (string): Display name for the contact.
- `phoneNumber` (string): DEPRECATED: Use primaryPhone instead. Primary phone number in E.164 format.
- `primaryPhone` (string): Primary phone number in E.164 format.
- `primaryEmail` (string<email>): Primary email address.
- `countryCode` (string)
- `profileName` (string, nullable): Contact's WhatsApp profile name. Only available for WhatsApp contacts.
- `whatsapp` (object): WhatsApp identity. Present when Zavu has a business-scoped user ID (BSUID) for the contact, and absent otherwise. A contact with a username can be reached under its BSUID, its phone number, or both; they are the same contact. Look one up by BSUID with the `bsuid` query parameter of the list endpoint.
  - `bsuid` (string, required): Business-scoped user ID. Can be used as `to` when sending.
  - `username` (string): The WhatsApp username, when Meta reported one.
- `availableChannels` (string[], required): List of available messaging channels for this contact.
- `defaultChannel` (string): Preferred channel for this contact. One of: `sms`, `whatsapp`, `telegram`, `email`, `instagram`, `messenger`, `voice`.
- `verified` (boolean, required): Whether this contact has been verified.
- `channels` (object[]): All communication channels for this contact.
  - `id` (string, required)
  - `channel` (string, required): Channel type. One of: `sms`, `whatsapp`, `email`, `telegram`, `instagram`, `messenger`, `voice`.
  - `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)
    - `{key}` (string)
  - `createdAt` (string<date-time>, required)
  - `updatedAt` (string<date-time>)
- `metadata` (object, required)
  - `{key}` (string)
- `createdAt` (string<date-time>, required)
- `updatedAt` (string<date-time>)

### 400

Invalid update.

- `code` (string, required)
- `message` (string, required)
- `details` (object)

### 401

Unauthorized.

- `code` (string, required)
- `message` (string, required)
- `details` (object)

### 404

Contact not found.

- `code` (string, required)
- `message` (string, required)
- `details` (object)

## Example

```bash
curl -X PATCH "https://api.zavu.dev/v1/contacts/contact_abc123" \
  -H "Authorization: Bearer $ZAVUDEV_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "displayName": "John Doe"
}'
```

```typescript
import Zavudev from "@zavudev/sdk";

const zavu = new Zavudev({ apiKey: process.env.ZAVUDEV_API_KEY });

const result = await zavu.contacts.update("contact_abc123", {
  displayName: "John Doe",
});

console.log(result);
```