# Meter methods: update, delete

URL: /code/sdk/meter/records-update · Id: `page:code/sdk/meter/records-update`

> The Meter Verbs update, delete as typed SDK methods, with inputs, result, refusals and an example.

Reference for [Meter](/business/nouns/meter), one group of [Meter methods](/code/sdk/meter).

### Meter.update
Changes the given properties of a Meter. [Verb page](/business/nouns/meter/update?interface=sdk).

```ts
interface MeterVerbs {
  update(input: MeterUpdateInput, options?: SB.CallOptions): SB.Call<Meter>
}
```

Emits `Meter.updated`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Meter. |
| `unit` | `string` | No | What it counts, such as calls or tokens. |
| `of` | `string` | No | The declared Event the Meter counts. |
| `aggregation` | `string` | No | How counted Events combine over the window: a sum of a value, a count, or the last value. |
| `window` | `string` | No | The period usage accrues over before it bills, such as a month. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `meter` | [Meter](/business/nouns/meter) | Yes | The Meter. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```ts
import { $ } from 'startup-builder'

const meter = await $.Meter.update({ id: 'mtr_z08Ufi8LwY', unit: 'call' })
```

### Meter.delete
Deletes a Meter: a soft delete that keeps its history, undone by `Thing.restore`. [Verb page](/business/nouns/meter/delete?interface=sdk).

```ts
interface MeterVerbs {
  delete(input: MeterDeleteInput, options?: SB.CallOptions): SB.Call<Meter>
}
```

Emits `Meter.deleted`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Meter. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `meter` | [Meter](/business/nouns/meter) | Yes | The Meter. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```ts
import { $ } from 'startup-builder'

const meter = await $.Meter.delete({ id: 'mtr_z08Ufi8LwY' })
```