---
editLink: false
lastUpdated: false
---

[@salesforce/b2c-tooling-sdk](../../../modules.md) / [operations/mrt](../index.md) / createAccessControlHeaderScapi

# Function: createAccessControlHeaderScapi()

> **createAccessControlHeaderScapi**(`conn`, `params`): `Promise`\<\{ `header`: [`MrtAccessControlHeaderView`](../interfaces/MrtAccessControlHeaderView.md); `raw`: `unknown`; \}\>

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts:482](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/8fc17d8708d025c83fb0c44ca73198a200605153/packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts#L482)

Creates an access control header via the SCAPI MRT Environments API. The
created value is returned masked (201 Created with the full header object).

## Parameters

### conn

[`ScapiMrtConnection`](../interfaces/ScapiMrtConnection.md)

### params

#### environmentId

`string`

#### storefrontId

`string`

#### value

`string`

## Returns

`Promise`\<\{ `header`: [`MrtAccessControlHeaderView`](../interfaces/MrtAccessControlHeaderView.md); `raw`: `unknown`; \}\>

## Throws

carrying the HTTP status on a non-2xx response.