> ## Documentation Index
> Fetch the complete documentation index at: https://docs.scanova.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Detach a tag from a shared user

> DELETE /tag/attached/

Removes a shared user's attribution for a tag, on the **Management API** host (`api.scanova.io`), authenticated with your raw Management API key.

```
DELETE https://api.scanova.io/tag/attached/
Authorization: 401f7ac837da42b97f613d789819ff93537bee6a
```

<ParamField query="added_by" type="string" required>
  The shared user's email address. Must belong to an existing shared user on this account.
</ParamField>

<ParamField query="tag" type="string" required>
  The tag name to detach. Required for `DELETE` (optional on the corresponding `GET`).
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X DELETE "https://api.scanova.io/tag/attached/?added_by=teammate@example.com&tag=vip" \
    -H "Authorization: 401f7ac837da42b97f613d789819ff93537bee6a"
  ```
</RequestExample>

A successful call returns `204 No Content`.

## What this actually does

This does **not** delete the tag, and it does **not** remove the tag from any QR Code. It only clears the *attribution* — which shared user gets credit for having added that tag — on every matching `TagRelation` row. The QR Codes keep the tag; it simply stops showing up as "added by" that teammate.

`400` if `added_by` isn't a shared user on this account, or if there's no matching tag-relation row to clear (`{"error": ["Tag does not exist."]}`).

## Related

* [List tags attached by a shared user](/api-reference/management-api/tags/attached-list) — find what to detach.
* [Shared user management](/api-reference/management-api/shared-users/list) — find `added_by` email addresses.
* [Management API overview](/api-reference/management-api/overview) — the auth scheme and quota rules that apply to this endpoint.


## OpenAPI

````yaml api-reference/openapi/management-api.json DELETE /tag/attached/
openapi: 3.1.0
info:
  title: Scanova Management API (v2)
  description: >-
    The complete Scanova Management API — every endpoint available at
    api.scanova.io (QR codes, folders, tags, leads, forms, analytics, plans,
    shared users & roles), plus the token-creation and usage-stats endpoints
    used to authenticate against it. Every path and request/response shape below
    was verified live against a real API key and the actual running backend
    (Phase 7, 2026-08-16) — not guessed from reading urls.py alone.
  version: 2.0.0
servers:
  - url: https://api.scanova.io
    description: Management API — QR/folder/tag/lead/form/analytics/plans endpoints
security:
  - apiKeyAuth: []
paths:
  /tag/attached/:
    delete:
      summary: Detach a tag from a shared user
      description: >-
        Clears `added_by` on every `TagRelation` row matching this shared user +
        tag name (the relation rows themselves aren't deleted, only the
        attribution) — QR codes keep the tag, it's just no longer attributed to
        that shared user. Both `added_by` and `tag` are required for DELETE.
      operationId: detachManagedTag
      parameters:
        - name: added_by
          in: query
          required: true
          schema:
            type: string
            format: email
        - name: tag
          in: query
          required: true
          schema:
            type: string
      responses:
        '204':
          description: Tag detached.
        '400':
          description: >-
            `added_by`/`tag` missing, not a shared user, or no matching tag
            relation found.
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: >-
        Send your Management API key as the raw value of the Authorization
        header — no "Bearer " or "Token " prefix, and no other characters.
        Example: `Authorization: 401f7ac837da42b97f613d789819ff93537bee6a`. A
        header containing more than one space-separated part is rejected
        outright. Requests also require the request's Host header to be the
        management API host (e.g. api.scanova.io) — the same key sent to the
        regular API host will not authenticate.

````