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

# Function: createAccessControlHeaderWithBackend()

> **createAccessControlHeaderWithBackend**(`options`): `Promise`\<[`MrtAccessControlHeaderResult`](../interfaces/MrtAccessControlHeaderResult.md)\>

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts:704](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/8fc17d8708d025c83fb0c44ca73198a200605153/packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts#L704)

Creates an access control header, routing to the SCAPI or legacy backend per
the given preference (with safe `auto` fallback).

## Parameters

### options

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

## Returns

`Promise`\<[`MrtAccessControlHeaderResult`](../interfaces/MrtAccessControlHeaderResult.md)\>