## Create or update a customer

**post** `/customers`

Creates a new customer or updates an existing one based on the provided information.

**Upsert Logic:**

1. If `id` is provided, updates the customer with that ID
1. If no `id` but phone/email provided, searches for existing customer by phone first, then email
1. If no existing customer found, creates a new customer

Tags are merged (not replaced) when updating.

### Header Parameters

- `"rotor-api-version": "1.1.0"`

  - `"1.1.0"`

### Body Parameters

- `id: optional string`

  Optional — provide to update an existing customer

- `billing_city: optional string`

- `billing_country: optional string`

- `billing_same_as_property: optional boolean`

- `billing_state: optional string`

- `billing_street1: optional string`

- `billing_street2: optional string`

- `billing_zip: optional string`

- `company_name: optional string`

- `email: optional string`

- `first_name: optional string`

- `last_name: optional string`

- `notes: optional string`

- `phone: optional string`

- `property_city: optional string`

- `property_country: optional string`

- `property_state: optional string`

- `property_street1: optional string`

- `property_street2: optional string`

- `property_zip: optional string`

- `service_frequency: optional string`

- `service_type: optional string`

- `source: optional string`

- `status: optional "active" or "inactive"`

  - `"active"`

  - `"inactive"`

- `tags: optional array of string`

### Returns

- `id: optional string`

- `billing_city: optional string`

- `billing_country: optional string`

- `billing_same_as_property: optional boolean`

- `billing_state: optional string`

- `billing_street1: optional string`

- `billing_street2: optional string`

- `billing_zip: optional string`

- `company_name: optional string`

- `created_at: optional string`

- `email: optional string`

- `first_name: optional string`

- `last_name: optional string`

- `message: optional string`

- `notes: optional string`

- `phone: optional string`

- `property_city: optional string`

- `property_country: optional string`

- `property_state: optional string`

- `property_street1: optional string`

- `property_street2: optional string`

- `property_zip: optional string`

- `service_frequency: optional string`

- `service_type: optional string`

- `source: optional string`

- `status: optional "active" or "inactive"`

  - `"active"`

  - `"inactive"`

- `tags: optional array of string`

### Example

```http
curl https://api.getrotor.com/open-api/customers \
    -H 'Content-Type: application/json' \
    -H "x-api-key: $ROTOR_API_KEY" \
    -d '{}'
```

#### Response

```json
{
  "id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
  "billing_city": "billing_city",
  "billing_country": "billing_country",
  "billing_same_as_property": true,
  "billing_state": "billing_state",
  "billing_street1": "billing_street1",
  "billing_street2": "billing_street2",
  "billing_zip": "billing_zip",
  "company_name": "company_name",
  "created_at": "2019-12-27T18:11:19.117Z",
  "email": "dev@stainless.com",
  "first_name": "first_name",
  "last_name": "last_name",
  "message": "Customer created successfully",
  "notes": "notes",
  "phone": "phone",
  "property_city": "property_city",
  "property_country": "property_country",
  "property_state": "property_state",
  "property_street1": "property_street1",
  "property_street2": "property_street2",
  "property_zip": "property_zip",
  "service_frequency": "service_frequency",
  "service_type": "service_type",
  "source": "source",
  "status": "active",
  "tags": [
    "string"
  ]
}
```