---
title: customers.update | Doing Work API
description: Change a customer's name, kind, company, email, phone, billing address, lead source, tags or notes.
url: https://doingwork.work/docs/reference/customers-update/
---

# customers.update

Change a customer's name, kind, company, email, phone, billing address, lead source, tags or notes.

|  |  |
|---|---|
| Who | Agents can call this |
| REST | `POST /v1/customers/update` |
| MCP tool | `customers_update` |
| Writes | yes, send an Idempotency-Key |
| Area | [Shop](https://doingwork.work/docs/reference/#shop) |

## When to use it

Change a customer's name, kind, company, email, phone, billing address, lead source, tags or notes.

## What to tell the owner

Say what you did in plain words and what happens next.

## Input

| Field | Type | Required |
|---|---|---|
| `customer_id` | string (uuid) | yes |
| `name` | string | no |
| `kind` | string (one of person, company) | no |
| `company_name` | string | no |
| `email` | string | no |
| `phone` | string | no |
| `billing_address` | object | no |
| `billing_address.line1` | string | no |
| `billing_address.line2` | string | no |
| `billing_address.locality` | string | no |
| `billing_address.region` | string | no |
| `billing_address.postal_code` | string | no |
| `billing_address.country` | string | no |
| `lead_source` | string | no |
| `tags` | array | no |
| `notes` | string | no |

## Example

```http
POST https://doingwork.work/v1/customers/update
content-type: application/json
Idempotency-Key: 3f1c...

{
  "customer_id": "00000000-0000-4000-8000-000000000000"
}
```

## Output

JSON. The response shape isn't published yet; read the fields you need and ignore the rest. Errors are `{code, message, status}`.

## Errors

| Code | Status | What to do |
|---|---|---|
| `invalid_input`, `invalid_token`, `rate_limited` |  | Can happen on any call. See [errors](https://doingwork.work/docs/errors/). |