# Mapping methods: update, delete

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

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

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

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

```ts
interface MappingVerbs {
  update(input: MappingUpdateInput, options?: SB.CallOptions): SB.Call<Mapping>
}
```

Emits `Mapping.updated`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Mapping. |
| `verb` | `string` | No | The Verb it serves, such as `Meeting.book`; a Verb has many Mappings, ranked. |
| `fields` | `json` | No | Each outside field or event and the Noun property or Event it maps to. |
| `direction` | `string` | No | `both` still keeps db.sb the record; the outside tool never becomes a second one. |
| `convert` | `text` | No | How a value changes on the way, such as cents to money or a picklist to closed values. |
| `rank` | `integer` | No | Order tried when the preferred Mapping fails or finds nothing; the Policy orders it by cost per accepted result. |
| `preferred` | `boolean` | No | True for the Mapping a Verb tries first. |
| `door` | `string` | No | How the outside endpoint is classed; an unclassed write is one-way and waits its delay window. |

**Returns**

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

**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 mapping = await $.Mapping.update({ id: 'mapping_WOromrQi6J', verb: 'Meeting.book' })
```

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

```ts
interface MappingVerbs {
  delete(input: MappingDeleteInput, options?: SB.CallOptions): SB.Call<Mapping>
}
```

Emits `Mapping.deleted`.

**Inputs**

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

**Returns**

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

**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 mapping = await $.Mapping.delete({ id: 'mapping_WOromrQi6J' })
```