## Deactivate a customer

`client.express.deactivate(stringexpressCustomerID, RequestOptionsoptions?): ExpressDeactivateResponse`

**post** `/v1/express/{expressCustomerId}/deactivate`

Deactivates a customer, preventing it from being used for new studies or user assignments. Existing data is preserved and the customer can be reactivated later.

### Parameters

- `expressCustomerID: string`

  Unique Express customer identifier. Format: cus_{32-hex-chars}

### Returns

- `ExpressDeactivateResponse`

  An Express customer entity that groups users and studies

  - `createdAt: string | null`

    Timestamp when the Express customer was created

  - `expressCustomerId: string`

    Unique Express customer identifier. Format: cus_{32-hex-chars}

  - `expressCustomerName: string`

    Name of the Express customer

  - `isActive: boolean`

    Whether the Express customer is currently active

  - `updatedAt: string | null`

    Timestamp when the Express customer was last updated

  - `userCount: number`

    Number of users currently in this Express customer

  - `createdByApiKeyId?: string`

    UUID of the API key used to create this Express customer, for audit tracking

  - `createdByUserId?: string`

    User ID who created this Express customer via dashboard, null if created via API key

  - `metadata?: Record<string, string>`

    Custom key-value metadata for the Express customer. Maximum 50 pairs, keys up to 100 chars, values up to 1000 chars

### Example

```typescript
import Avara from 'avara-software';

const client = new Avara({
  apiKey: process.env['AVARA_API_KEY'], // This is the default and can be omitted
});

const response = await client.express.deactivate('cus_1234567890abcdef1234567890abcdef');

console.log(response.createdAt);
```

#### Response

```json
{
  "createdAt": "2024-01-15T09:00:00Z",
  "expressCustomerId": "cus_1234567890abcdef1234567890abcdef",
  "expressCustomerName": "City Medical Center - Radiology Department",
  "isActive": true,
  "updatedAt": "2024-03-15T14:20:00Z",
  "userCount": 15,
  "createdByApiKeyId": "550e8400-e29b-41d4-a716-446655440000",
  "createdByUserId": "usr_1234567890abcdef1234567890abcdef",
  "metadata": {
    "department": "radiology",
    "region": "northeast"
  }
}
```