---
title: brand_detach_advertiser
description: Remove the link between an ad account and a brand, leaving the brand and its context untouched.
---

Removes the link between an **ad account** and a brand, so [`brand_resolve`](/mcp/tools/brand-resolve) on that account stops returning this brand's context.

Only the link goes. The brand, everything written on it, and its files are untouched — and any other account attached to the same brand is unaffected.

## Input

| Field           | Type     | Required | Description                  |
| --------------- | -------- | -------- | ---------------------------- |
| `brand_name`    | `string` | yes      | The brand slug.              |
| `advertiser_id` | `string` | yes      | The ad account id (`acc_…`). |

The same two fields [`brand_attach_advertiser`](/mcp/tools/brand-attach-advertiser) takes — see that page for how accounts and brands relate, including the fact that one account can belong to several brands.

Requires the `brand:write` scope.