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

# Update one legacy A/B test metaobject

> Upserts the A/B test metaobject named by the body's `handle`, creating its definitions on first use; when the body carries its `id`, it must be the path's metaobject. Used to edit a running legacy whole-collection A/B test (dates, name, notify email, generated conclusion). Side effect: a Shopify metaobject write. Returns JSON `null`.



## OpenAPI

````yaml /api-reference/openapi/lite.json put /brand-features/metaobject/{metaobject_id}
openapi: 3.1.0
info:
  title: Search & Merchandising API
  version: 1.0.0
  description: >-
    REST API behind Depict: Search & Merchandising, the native Shopify app:
    onboarding, collections, boost & bury, dashboards, A/B testing and
    multi-store management. Endpoints are served under the /api/lite prefix and
    are authenticated with the Shopify session token that App Bridge issues to
    the embedded app.
servers:
  - url: /api/lite
security:
  - ShopifySessionToken: []
paths:
  /brand-features/metaobject/{metaobject_id}:
    put:
      summary: Update one legacy A/B test metaobject
      description: >-
        Upserts the A/B test metaobject named by the body's `handle`, creating
        its definitions on first use; when the body carries its `id`, it must be
        the path's metaobject. Used to edit a running legacy whole-collection
        A/B test (dates, name, notify email, generated conclusion). Side effect:
        a Shopify metaobject write. Returns JSON `null`.
      operationId: abTestMetaobjectUpdate
      parameters:
        - schema:
            type: string
            description: >-
              The metaobject's numeric id (the tail of its gid); a body `id`
              must name the same metaobject.
          required: true
          description: >-
            The metaobject's numeric id (the tail of its gid); a body `id` must
            name the same metaobject.
          name: metaobject_id
          in: path
        - schema:
            type: string
            description: Lite merchant id, e.g. `shopify-<shop id>`.
          required: true
          description: Lite merchant id, e.g. `shopify-<shop id>`.
          name: merchant_id
          in: query
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ProAbTest'
      responses:
        '200':
          description: Saved; the body is JSON `null`.
          content:
            application/json:
              schema:
                type: 'null'
        '400':
          description: >-
            The query or body failed the schema, the body's `id` is not the
            path's metaobject, or the merchant has no Shopify configuration.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
        '401':
          description: Not authenticated.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
        '403':
          description: Authenticated, but this identity may not call the API.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
        '404':
          description: Merchant not found for this caller.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
        '415':
          description: Content-Type is not application/json.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
        '500':
          description: Internal error, or a Shopify write failed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Detail'
components:
  schemas:
    ProAbTest:
      type: object
      properties:
        id:
          type:
            - string
            - 'null'
          description: >-
            The test's Shopify metaobject GID. Required unless
            generated_conclusion is set: a generation without it answers 500 and
            writes nothing.
        handle:
          type: string
        start_date:
          type: string
        end_date:
          type: string
        experiment_name:
          type: string
        notify_email:
          type: string
        generated_conclusion:
          type:
            - string
            - 'null'
          description: A stored conclusion; when non-empty it is returned as-is.
      required:
        - handle
        - start_date
        - end_date
        - experiment_name
        - notify_email
    Detail:
      type: object
      properties:
        detail:
          type: string
      required:
        - detail
      description: 'Every 4xx/5xx body: `{detail}`.'
  securitySchemes:
    ShopifySessionToken:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        Shopify App Bridge session token of the embedded Depict: Search &
        Merchandising app. The shop in the token determines the merchant;
        merchant_id parameters must belong to that shop.

````