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

# Create substance of concern

> Record a regulated substance present in one of the organization's products. Requires CONTRIBUTE on the organization. 404 if the GTIN isn't a product the organization owns or a referenced id isn't the organization's. Nothing is created on error.



## OpenAPI

````yaml /openapi/openapi-sustainability.json post /sustainability/api/v1/substances-of-concern
openapi: 3.1.0
info:
  title: Sustainability API
  version: 1.0.0
  description: >
    Product sustainability data: circularity scores, recyclability, packaging
    breakdown, major components, end-of-life instructions, and environmental
    impact assessments.


    ## Authentication


    All endpoints require an API key passed via the `X-API-Key` HTTP header,
    unless otherwise noted.


    ```

    X-API-Key: csb_<body>_<checksum>

    ```


    Generate API keys in **Settings > API Keys** in your dashboard, or via the
    Account API.

    Session-based (cookie) authentication is also accepted for browser-based
    access.


    ## Rate Limits


    | Tier        | Requests / minute | Requests / day |

    |-------------|-------------------|----------------|

    | Default     | 300               | 10,000         |

    | Custom      | Contact us        | Contact us     |


    Rate-limit headers are included on every response so callers can
    self-throttle without

    hitting our 429s ("informed governor"):


    - `RateLimit-Policy` — every active window, e.g. `300;w=60, 10000;w=86400`

    - `RateLimit-Limit` — quota for the **most-restrictive** currently-active
    window

    - `RateLimit-Remaining` — requests left in that window

    - `RateLimit-Reset` — seconds until that window resets (relative; clock-skew
    safe)


    Legacy `X-RateLimit-*` aliases are also emitted for back-compat.
    `X-RateLimit-Reset`

    keeps the absolute Unix-timestamp shape to avoid breaking existing
    consumers.


    When rate-limited, you receive `429 Too Many Requests` with a
    `retry_after_seconds` field

    in the error envelope and a `Retry-After` header.


    ## Pagination


    List endpoints return paginated results in this envelope:


    ```json

    {
      "data": [...],
      "pagination": {
        "page": 1,
        "page_size": 25,
        "total_count": 342,
        "total_pages": 14,
        "has_next": true,
        "has_previous": false
      }
    }

    ```


    Use `?page=2&page_size=50` query parameters. Maximum page size is 100.


    ## Error Responses


    All errors conform to [RFC 9457 Problem
    Details](https://www.rfc-editor.org/rfc/rfc9457)

    with `Content-Type: application/problem+json`:


    ```json

    {
      "type": "https://closient.com/docs/errors/not_found",
      "title": "Not Found",
      "status": 404,
      "detail": "The requested resource was not found.",
      "error_code": "not_found",
      "retryable": false,
      "timestamp": "2026-03-31T12:00:00+00:00"
    }

    ```


    Common error codes: `unauthorized` (401), `forbidden` (403), `not_found`
    (404),

    `validation_error` (422), `rate_limited` (429), `internal_error` (500).
  termsOfService: https://www.closient.com/terms/
servers:
  - url: https://www.closient.com
security: []
tags:
  - name: Sustainability
    description: Read-only product sustainability queries keyed by GTIN.
  - name: Packaging
    description: Packaging elements of a product. Create, read, update and delete.
  - name: Recyclability
    description: Recyclability assessments of packaging elements.
  - name: End-of-life instructions
    description: Disposal instructions for a product or component.
  - name: Environmental impacts
    description: Quantified environmental impact assessments.
  - name: Production processes
    description: Production process stages and the process-type catalog.
  - name: Transport impacts
    description: Transport legs and their emissions.
  - name: Substances of concern
    description: Regulated substances present in a product.
externalDocs:
  description: Closient Documentation
  url: https://docs.closient.com
paths:
  /sustainability/api/v1/substances-of-concern:
    post:
      tags:
        - Substances of concern
      summary: Create substance of concern
      description: >-
        Record a regulated substance present in one of the organization's
        products. Requires CONTRIBUTE on the organization. 404 if the GTIN isn't
        a product the organization owns or a referenced id isn't the
        organization's. Nothing is created on error.
      operationId: apps_sustainability_api_records_create_substance_of_concern
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SubstanceOfConcernRecordCreate'
        required: true
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SubstanceOfConcernRecordOut'
        '400':
          description: Bad Request
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '401':
          description: Unauthorized
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '403':
          description: Forbidden
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '404':
          description: Not Found
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '405':
          description: Method Not Allowed
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '409':
          description: Conflict
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '422':
          description: Unprocessable Content
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
        '429':
          description: Too Many Requests
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ErrorOut'
      security:
        - APIKeyHeaderAuth: []
        - OAuthTokenAuth: []
        - CookieGatedSessionAuth: []
components:
  schemas:
    SubstanceOfConcernRecordCreate:
      description: Payload for ``POST /substances-of-concern``.
      examples:
        - concentration: 0.1
          concentration_unit: PPM
          gtin: '00850012345688'
          is_above_threshold: false
          notes: Measured on the solder joints.
          regulation: PROP65
          substance_id: 8Jw2nQxK5vTbR3mYcLdZaE
          threshold_unit: PPM
          threshold_value: 0.5
      properties:
        gtin:
          description: >-
            GTIN (8, 12, 13 or 14 digits) of the product. Must be a product the
            caller's organization owns, else 404.
          format: gtin
          maxLength: 14
          minLength: 8
          title: Gtin
          type: string
        substance_id:
          description: >-
            A substance from the substance catalog, else 404. Substances still
            awaiting review are not accepted. 409 if the product already records
            this substance for the same component.
          format: shortuuid
          maxLength: 22
          minLength: 22
          pattern: ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
          title: Substance Id
          type: string
        component_id:
          anyOf:
            - description: >-
                URL-safe 22-character shortuuid encoding of the row's UUID
                primary key. Stable across the row's lifetime; suitable for
                sharing in URLs, log lines, and external SDK clients. Accepted
                on input as either the shortuuid form or the canonical UUID form
                (``xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx``).
              format: shortuuid
              maxLength: 22
              minLength: 22
              pattern: >-
                ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
              type: string
            - type: 'null'
          description: >-
            A component of this product that contains it, else 404. Omit for the
            whole product.
          title: Component Id
        concentration:
          anyOf:
            - maximum: 1000000
              minimum: 0
              type: number
            - type: 'null'
          description: Measured concentration, 0-1,000,000.
          title: Concentration
        concentration_unit:
          anyOf:
            - $ref: '#/components/schemas/ConcentrationUnitEnum'
            - type: 'null'
          description: Unit of ``concentration``.
        threshold_value:
          anyOf:
            - maximum: 1000000
              minimum: 0
              type: number
            - type: 'null'
          description: Regulatory or internal limit, 0-1,000,000.
          title: Threshold Value
        threshold_unit:
          anyOf:
            - $ref: '#/components/schemas/ConcentrationUnitEnum'
            - type: 'null'
          description: >-
            Unit of ``threshold_value``. Use the same unit as
            ``concentration_unit``.
        regulation:
          allOf:
            - $ref: '#/components/schemas/RegulationEnum'
          default: OTHER
          description: Regulation the substance is tracked under.
        is_above_threshold:
          default: false
          description: Whether the concentration is above the threshold.
          title: Is Above Threshold
          type: boolean
        notes:
          default: ''
          description: Free-text notes.
          maxLength: 1000
          pattern: ^[^\x00]{0,1000}$
          title: Notes
          type: string
      required:
        - gtin
        - substance_id
      title: SubstanceOfConcernRecordCreate
      type: object
    SubstanceOfConcernRecordOut:
      description: A regulated substance present in one of the organization's products.
      examples:
        - concentration: 0.1
          concentration_unit: PPM
          created: '2026-09-30T09:00:00Z'
          gtin: '00850012345688'
          id: F5n5NdW6dTbvPYkgnLNjte
          is_above_threshold: false
          modified: '2026-09-30T09:00:00Z'
          notes: Measured on the solder joints.
          organization_id: 9fHkqR2aXcVbNmLpQwErTy
          regulation: PROP65
          substance_id: 8Jw2nQxK5vTbR3mYcLdZaE
          substance_name: Lead
          threshold_unit: PPM
          threshold_value: 0.5
      properties:
        id:
          description: >-
            URL-safe 22-character shortuuid encoding of the row's UUID primary
            key. Stable across the row's lifetime; suitable for sharing in URLs,
            log lines, and external SDK clients. Accepted on input as either the
            shortuuid form or the canonical UUID form
            (``xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx``).
          format: shortuuid
          maxLength: 22
          minLength: 22
          pattern: ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
          title: Id
          type: string
        organization_id:
          description: The organization that owns the product.
          format: shortuuid
          maxLength: 22
          minLength: 22
          pattern: ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
          title: Organization Id
          type: string
        gtin:
          description: The product's GTIN, normalized to GTIN-14.
          title: Gtin
          type: string
        created:
          description: Server-side ISO 8601 timestamp of creation (UTC).
          format: date-time
          title: Created
          type: string
        modified:
          description: Server-side ISO 8601 timestamp of last modification (UTC).
          format: date-time
          title: Modified
          type: string
        substance_id:
          description: The substance, from the substance catalog.
          format: shortuuid
          maxLength: 22
          minLength: 22
          pattern: ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
          title: Substance Id
          type: string
        substance_name:
          description: The substance's name.
          title: Substance Name
          type: string
        component_id:
          anyOf:
            - description: >-
                URL-safe 22-character shortuuid encoding of the row's UUID
                primary key. Stable across the row's lifetime; suitable for
                sharing in URLs, log lines, and external SDK clients. Accepted
                on input as either the shortuuid form or the canonical UUID form
                (``xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx``).
              format: shortuuid
              maxLength: 22
              minLength: 22
              pattern: >-
                ^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$
              type: string
            - type: 'null'
          description: The component that contains it. Null for the whole product.
          title: Component Id
        concentration:
          anyOf:
            - type: number
            - type: 'null'
          description: Measured concentration. Null when unmeasured.
          title: Concentration
        concentration_unit:
          description: Unit of ``concentration``. Empty when unset.
          title: Concentration Unit
          type: string
        threshold_value:
          anyOf:
            - type: number
            - type: 'null'
          description: Regulatory or internal limit. Null when unset.
          title: Threshold Value
        threshold_unit:
          description: Unit of ``threshold_value``. Empty when unset.
          title: Threshold Unit
          type: string
        regulation:
          description: Regulation the substance is tracked under.
          title: Regulation
          type: string
        is_above_threshold:
          description: Whether the concentration is above the threshold.
          title: Is Above Threshold
          type: boolean
        notes:
          description: Free-text notes. Empty when unset.
          title: Notes
          type: string
      required:
        - id
        - organization_id
        - gtin
        - created
        - modified
        - substance_id
        - substance_name
        - component_id
        - concentration
        - concentration_unit
        - threshold_value
        - threshold_unit
        - regulation
        - is_above_threshold
        - notes
      title: SubstanceOfConcernRecordOut
      type: object
    ErrorOut:
      description: |-
        RFC 9457 Problem Details response.

        All API errors are returned in this format with Content-Type:
        application/problem+json.
      examples:
        - detail: The requested resource was not found.
          error_code: not_found
          retryable: false
          status: 404
          timestamp: '2026-03-31T12:00:00+00:00'
          title: Not Found
          type: https://closient.com/docs/errors/not_found
        - detail: Validation error.
          details:
            - loc:
                - body
                - name
              msg: Field required
              type: missing
          error_code: validation_error
          retryable: false
          status: 422
          timestamp: '2026-03-31T12:00:00+00:00'
          title: Validation Error
          type: https://closient.com/docs/errors/validation_error
        - detail: Rate limit exceeded. Please try again later.
          error_code: rate_limited
          retry_after: 31
          retryable: true
          status: 429
          timestamp: '2026-03-31T12:00:00+00:00'
          title: Rate Limited
          type: https://closient.com/docs/errors/rate_limited
      properties:
        type:
          description: URI reference identifying the error type.
          title: Type
          type: string
        title:
          description: Short human-readable summary of the error.
          title: Title
          type: string
        status:
          description: HTTP status code.
          title: Status
          type: integer
        detail:
          description: Human-readable explanation of this specific occurrence.
          title: Detail
          type: string
        error_code:
          description: Machine-readable error code (e.g. not_found, unauthorized).
          title: Error Code
          type: string
        retryable:
          default: false
          description: Whether retrying the same request can succeed.
          title: Retryable
          type: boolean
        timestamp:
          description: ISO 8601 timestamp of when the error occurred.
          title: Timestamp
          type: string
        retry_after:
          anyOf:
            - type: integer
            - type: 'null'
          description: Seconds to wait before retrying (when applicable).
          title: Retry After
        owner_action_required:
          anyOf:
            - type: boolean
            - type: 'null'
          description: Whether the error requires account owner intervention.
          title: Owner Action Required
        details:
          description: Additional context (validation errors, etc.).
          title: Details
      required:
        - type
        - title
        - status
        - detail
        - error_code
        - timestamp
      title: ErrorOut
      type: object
    ConcentrationUnitEnum:
      description: >-
        Unit of a concentration or threshold
        (``apps.substances.models.ConcentrationUnit``).
      enum:
        - PPM
        - PPB
        - MG_KG
        - MG_L
        - UG_KG
        - UG_L
        - PERCENT
      title: ConcentrationUnitEnum
      type: string
    RegulationEnum:
      description: >-
        Regulation a substance of concern is tracked under
        (``SubstanceOfConcern.Regulation``).
      enum:
        - REACH
        - ROHS
        - PROP65
        - TSCA
        - FDA
        - OTHER
      title: RegulationEnum
      type: string
  securitySchemes:
    APIKeyHeaderAuth:
      type: apiKey
      in: header
      name: X-API-Key
    OAuthTokenAuth:
      type: http
      scheme: bearer
    CookieGatedSessionAuth:
      type: apiKey
      in: cookie
      name: sessionid

````