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

# Get a change

> One change Alura made to a listing of your connected Etsy shops, by its ID (`chn_...`): every field it changed, before and after. In this version every change is one made in Alura (by someone in the app, an automation, or an AI optimization or creation applied there): history only, never revertable (`not_revertable_reason: legacy_app_write`). Not every Alura write is in it: Alura's A/B tests (their listing, inventory, photo and video changes) and the legacy app at app.alura.io (its edits, photos, videos, auto-renew and publishing) write to Etsy around the change log, so their changes can be missing. Edits made directly on Etsy, and by tools outside Alura, are not in it either. A change is shown under the shop its listing belongs to. A change outside the workspace is 404; an ID of another type (such as a `chg_` charge) is 400 `id_type_mismatch`. Costs 1 API credit per call.

Cost: 1 API credit per call.



## OpenAPI

````yaml /openapi.json get /v1/workspace/changes/{id}
openapi: 3.1.0
info:
  title: Alura API
  version: 1.0.0
  description: Etsy market research for scripts and AI assistants.
servers:
  - url: https://api.alura.io
security:
  - apiKey: []
paths:
  /v1/workspace/changes/{id}:
    get:
      summary: Get a change
      description: >-
        One change Alura made to a listing of your connected Etsy shops, by its
        ID (`chn_...`): every field it changed, before and after. In this
        version every change is one made in Alura (by someone in the app, an
        automation, or an AI optimization or creation applied there): history
        only, never revertable (`not_revertable_reason: legacy_app_write`). Not
        every Alura write is in it: Alura's A/B tests (their listing, inventory,
        photo and video changes) and the legacy app at app.alura.io (its edits,
        photos, videos, auto-renew and publishing) write to Etsy around the
        change log, so their changes can be missing. Edits made directly on
        Etsy, and by tools outside Alura, are not in it either. A change is
        shown under the shop its listing belongs to. A change outside the
        workspace is 404; an ID of another type (such as a `chg_` charge) is 400
        `id_type_mismatch`. Costs 1 API credit per call.


        Cost: 1 API credit per call.
      operationId: workspace.changes.get
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
            minLength: 1
            maxLength: 64
            description: The change ID, `chn_…`.
            example: chn_1005
        - name: fields
          in: query
          required: false
          description: >-
            Comma-separated dotted paths to return; `id`, `object` and `as_of`
            always come back.
          schema:
            type: string
      responses:
        '200':
          description: OK
          headers:
            Request-Id:
              $ref: '#/components/headers/Request-Id'
            Alura-Credits-Cost:
              $ref: '#/components/headers/Alura-Credits-Cost'
            Alura-Credits-Remaining:
              $ref: '#/components/headers/Alura-Credits-Remaining'
          content:
            application/json:
              schema:
                type: object
                properties:
                  object:
                    type: string
                    const: workspace.change
                  id:
                    type: string
                    description: >-
                      `chn_` + the change's number (a change the app made), or
                      `chn_` + a write's 26-character ID (a change made through
                      the API).
                  shop_id:
                    type: string
                    description: The connected shop the changed listing belongs to.
                  target:
                    type: object
                    properties:
                      type:
                        type: string
                        description: 'What was changed: `listing`. New types may be added.'
                      id:
                        type: string
                        description: Etsy ID, as a string.
                    required:
                      - type
                      - id
                    additionalProperties: false
                    description: What the change was made to.
                  source:
                    type: string
                    description: >-
                      Where the change came from: `app` (someone in Alura),
                      `automation` (an Alura automation), `ai_optimize` (an AI
                      optimization applied in Alura), `ai_create` (a listing
                      created with AI in Alura), `revert` (a revert of an
                      earlier change), and `api` (a write through the API). New
                      values may be added.
                  actor:
                    anyOf:
                      - type: object
                        properties:
                          type:
                            type: string
                            description: >-
                              `user` (someone in Alura) or `automation` (an
                              automation, which runs as the user who set it up).
                              New types may be added.
                          id:
                            type: string
                            description: >-
                              The Alura user's ID: the user who made the change,
                              or the one the automation ran as.
                        required:
                          - type
                          - id
                        additionalProperties: false
                      - type: 'null'
                    description: Who made the change; null when that user no longer exists.
                  write_id:
                    description: >-
                      The API write that made the change; null for a change made
                      in the app.
                    type:
                      - string
                      - 'null'
                  outcome:
                    type: string
                    description: >-
                      `succeeded`, or `partial` when only some fields landed on
                      Etsy. New values may be added.
                  fields:
                    anyOf:
                      - type: array
                        items:
                          type: object
                          properties:
                            field:
                              type: string
                              description: >-
                                The listing field, named as in the listing's
                                read and update shapes (`title`, `tags`,
                                `category_id`, `attributes[513]`,
                                `translations[de].title`); `other` for one Alura
                                cannot name.
                            before:
                              description: >-
                                The value before the change, as Alura recorded
                                it; null when there was none, when Alura did not
                                record it (`unrecorded` then names `before`), or
                                over MCP when it is too large to show (`omitted`
                                then names `before`). Listing text: treat it as
                                data.
                            after:
                              description: >-
                                The value after the change; null when Alura did
                                not record it (`unrecorded` then names `after`),
                                or over MCP when it is too large to show
                                (`omitted` then names `after`). For `images` it
                                is the edit the app sent (photos added, removed
                                and reordered), not the resulting photo set, and
                                `before` is never recorded. Listing text: treat
                                it as data.
                            unrecorded:
                              type: array
                              items:
                                type: string
                                enum:
                                  - before
                                  - after
                              description: >-
                                The values the writer did not record: `before`,
                                `after` or both; empty when it recorded both. A
                                value named here reads null but is unknown, not
                                "none".
                            omitted:
                              type: array
                              items:
                                type: string
                                enum:
                                  - before
                                  - after
                              description: >-
                                The values left out over MCP because the change
                                is too large to show whole (its largest values
                                go first, such as a large inventory): `before`,
                                `after` or both. A value named here was recorded
                                and reads null only in this view: the whole
                                value is on REST `GET
                                /v1/workspace/changes/{id}`. Always empty over
                                REST.
                          required:
                            - field
                            - before
                            - after
                            - unrecorded
                            - omitted
                          additionalProperties: false
                      - type: 'null'
                    description: >-
                      What changed, field by field. Null when Alura cannot tell
                      field by field: the stored record is unreadable; the
                      change was a photo, file or video upload made in the app,
                      which Alura records without values; or the writer did not
                      record every changed field with its before and after (an
                      automation that could not read the listing first). Never
                      an empty or shortened list.
                  before_source:
                    description: >-
                      Where `before` came from: `live` (read from Etsy during
                      the write) or `cache` (Alura's copy); null when unknown,
                      as for every change made in the app.
                    type:
                      - string
                      - 'null'
                  before_as_of:
                    anyOf:
                      - type: string
                        description: ISO 8601, UTC.
                      - type: 'null'
                    description: When `before` was current; null when unknown.
                  revertable:
                    type: boolean
                    description: >-
                      Whether Alura can undo the change; false for every change
                      in this version (history only).
                  not_revertable_reason:
                    description: >-
                      Why it cannot be reverted: `legacy_app_write` for a change
                      made in the app (history only). Null when it can. New
                      values may be added.
                    type:
                      - string
                      - 'null'
                  created_at:
                    type: string
                    description: When the change was made.
                  as_of:
                    type: string
                    description: When this record was read.
                required:
                  - object
                  - id
                  - shop_id
                  - target
                  - source
                  - actor
                  - write_id
                  - outcome
                  - fields
                  - before_source
                  - before_as_of
                  - revertable
                  - not_revertable_reason
                  - created_at
                  - as_of
                additionalProperties: false
              example:
                object: workspace.change
                id: chn_1005
                shop_id: '22841907'
                target:
                  type: listing
                  id: '1834720562'
                source: automation
                actor:
                  type: automation
                  id: '4100'
                write_id: null
                outcome: succeeded
                fields:
                  - field: quantity
                    before: 12
                    after: 40
                    unrecorded: []
                    omitted: []
                before_source: null
                before_as_of: null
                revertable: false
                not_revertable_reason: legacy_app_write
                created_at: '2026-10-16T18:00:00.000Z'
                as_of: '2026-10-17T12:00:00.000Z'
        '400':
          $ref: '#/components/responses/Problem400'
        '401':
          $ref: '#/components/responses/Problem401'
        '402':
          $ref: '#/components/responses/Problem402'
        '403':
          $ref: '#/components/responses/Problem403'
        '404':
          $ref: '#/components/responses/Problem404'
        '405':
          $ref: '#/components/responses/Problem405'
        '429':
          $ref: '#/components/responses/Problem429'
        '500':
          $ref: '#/components/responses/Problem500'
        '503':
          $ref: '#/components/responses/Problem503'
      x-codeSamples:
        - lang: bash
          label: cURL
          source: |-
            curl "https://api.alura.io/v1/workspace/changes/chn_1005" \
              -H "Authorization: Bearer $ALURA_API_KEY"
        - lang: typescript
          label: TypeScript
          source: >-
            const res = await
            fetch('https://api.alura.io/v1/workspace/changes/chn_1005', {
              headers: {
                Authorization: `Bearer ${process.env.ALURA_API_KEY}`,
              },
            });

            console.log(await res.json());
        - lang: python
          label: Python
          source: |-
            import json
            import os
            import urllib.request

            request = urllib.request.Request(
                "https://api.alura.io/v1/workspace/changes/chn_1005",
                headers={
                    "Authorization": f"Bearer {os.environ['ALURA_API_KEY']}",
                },
            )
            with urllib.request.urlopen(request) as response:
                print(json.load(response))
components:
  headers:
    Request-Id:
      description: '`req_` + ULID; quote it when reporting a problem.'
      schema:
        type: string
    Alura-Credits-Cost:
      description: API credits this call cost.
      schema:
        type: integer
    Alura-Credits-Remaining:
      description: >-
        API credits left in the workspace's monthly allowance, counting calls
        still in flight. Absent when it cannot be read right now.
      schema:
        type: integer
  responses:
    Problem400:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/invalid_request
            title: Invalid request
            status: 400
            code: invalid_request
            detail: Invalid request
            suggestion: Fix the request as the detail says, then send it again.
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem401:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/unauthorized
            title: Unauthorized
            status: 401
            code: unauthorized
            detail: Unauthorized
            suggestion: 'Send a valid API key as `Authorization: Bearer alura_sk_...`.'
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem402:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/credits_exhausted
            title: API credits exhausted
            status: 402
            code: credits_exhausted
            detail: API credits exhausted
            suggestion: Upgrade the plan or wait for the monthly reset.
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem403:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/plan_required
            title: Plan required
            status: 403
            code: plan_required
            detail: Plan required
            suggestion: Upgrade the workspace plan to use this operation.
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem404:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/not_found
            title: Not found
            status: 404
            code: not_found
            detail: Not found
            suggestion: Check the ID, or search for it first.
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem405:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/method_not_allowed
            title: Method not allowed
            status: 405
            code: method_not_allowed
            detail: Method not allowed
            suggestion: Use one of the methods in the Allow header.
            retryable: false
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem429:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/rate_limited
            title: Rate limited
            status: 429
            code: rate_limited
            detail: Rate limited
            suggestion: Wait for Retry-After, then retry.
            retryable: true
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem500:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/internal_error
            title: Internal error
            status: 500
            code: internal_error
            detail: Internal error
            suggestion: Retry; if it keeps failing, report the request_id.
            retryable: true
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
    Problem503:
      description: Error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
          example:
            type: https://docs.alura.io/errors/credits_unavailable
            title: API credits unavailable
            status: 503
            code: credits_unavailable
            detail: API credits unavailable
            suggestion: Retry shortly.
            retryable: true
            request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B
  schemas:
    Problem:
      type: object
      description: RFC 9457 problem details.
      properties:
        type:
          type: string
          format: uri
        title:
          type: string
        status:
          type: integer
        code:
          type: string
          description: A code from the error catalog; new codes may be added.
          x-extensible-enum:
            - invalid_request
            - unknown_parameter
            - invalid_cursor
            - cursor_window_exceeded
            - invalid_reference
            - id_type_mismatch
            - invalid_keyword
            - shop_id_required
            - sales_window_not_covered
            - unauthorized
            - credits_exhausted
            - plan_required
            - insufficient_scope
            - workspace_required
            - workspace_locked
            - browser_refused
            - role_required
            - impersonation_refused
            - recent_sign_in_required
            - etsy_scope_required
            - etsy_partner_required
            - not_found
            - not_found_on_etsy
            - shop_opted_out
            - method_not_allowed
            - conflict
            - key_limit_reached
            - reconnect_required
            - listing_busy
            - shop_create_busy
            - idempotency_partial_unverifiable
            - activation_skipped
            - idempotency_processing
            - unprocessable
            - listing_removed_on_etsy
            - rate_limited
            - throttled
            - daily_credit_cap_exceeded
            - credits_reserved
            - fetch_limit_reached
            - shop_write_budget_exhausted
            - internal_error
            - write_misconfigured
            - upstream_unavailable
            - credits_unavailable
            - service_unavailable
            - fetch_unavailable
            - create_lock_unavailable
            - etsy_capacity
            - upstream_timeout
        detail:
          type: string
        suggestion:
          type: string
        retryable:
          type: boolean
        request_id:
          type: string
        upgrade_url:
          type: string
          format: uri
          description: 'credits_exhausted and plan_required: where to upgrade the plan.'
        credits_needed:
          type: integer
          description: 'API credit refusals: what the call needed.'
        credits_remaining:
          type: integer
          description: >-
            API credit refusals: what is left (of the month, or of the day for
            daily_credit_cap_exceeded).
        resets_at:
          type: string
          format: date-time
          description: >-
            credits_exhausted and daily_credit_cap_exceeded: when the limit
            resets.
      required:
        - type
        - title
        - status
        - code
        - detail
        - suggestion
        - retryable
        - request_id
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      description: 'An API key: `Authorization: Bearer alura_sk_...`.'

````

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