> ## Documentation Index
> Fetch the complete documentation index at: https://docs.watchdog.no/llms.txt
> Use this file to discover all available pages before exploring further.

# Update a claim refund

> Omitted fields are unchanged. Null comment or credit_note_id clears it. Optional If-Match prevents stale edits. A credit-note link does not change the amount or currency.



## OpenAPI

````yaml /openapi-preview.json patch /v1/claims/{id}/refunds/{refund_id}
openapi: 3.1.0
info:
  title: Watchdog API (preview)
  version: 1.0.0
  description: >-
    Development preview for agreements, price items, document relationships,
    canonical invoices, alerts and alert topics, claims and attached alerts,
    shared entity activity and comments, Document uploads, invoice imports,
    explicit invoice-agreement matching, and workflow runs. This contract is
    under development and is not served by api.watchdog.no. Request bodies are
    limited to 2 MiB (2,097,152 bytes), including all JSON fields and line data,
    except POST /v1/support/contact which permits 32 MiB for base64 attachments.
    File bytes are uploaded directly to storage. The existing public REST
    service retains its separate contract.
servers:
  - url: http://localhost:3500
    description: Local development Worker
security: []
paths:
  /v1/claims/{id}/refunds/{refund_id}:
    patch:
      tags:
        - Claims
      summary: Update a claim refund
      description: >-
        Omitted fields are unchanged. Null comment or credit_note_id clears it.
        Optional If-Match prevents stale edits. A credit-note link does not
        change the amount or currency.
      operationId: updateClaimRefund
      parameters:
        - name: X-Organization-Id
          in: header
          required: false
          schema:
            type: string
          description: >-
            Required for personal API keys. Target one organization you have
            access to. Migrated keys may omit it to use their original
            organization. For Clerk sessions, it must match the active
            organization.
        - schema:
            type: string
            format: uuid
          required: true
          name: id
          in: path
        - schema:
            type: string
            format: uuid
          required: true
          name: refund_id
          in: path
        - schema:
            type: string
            maxLength: 4096
          required: false
          name: if-match
          in: header
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                amount:
                  type: string
                  maxLength: 100
                  pattern: ^\d+(?:\.\d+)?$
                currency_code:
                  type: string
                  pattern: ^[A-Z]{3}$
                comment:
                  type:
                    - string
                    - 'null'
                  maxLength: 2000
                credit_note_id:
                  type:
                    - string
                    - 'null'
                  format: uuid
              additionalProperties: false
      responses:
        '200':
          description: Current refund.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
            ETag:
              schema:
                type: string
              required: true
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ClaimRefund'
        '400':
          description: >-
            Invalid request format, parameters, or body. Details contain up to
            20 actionable field errors; the complete encoded request body must
            be at most 2 MiB (2,097,152 bytes).
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_validation_error'
              example:
                error:
                  code: validation_error
                  message: >-
                    Invalid request format, parameters, or body. Details contain
                    up to 20 actionable field errors; the complete encoded
                    request body must be at most 2 MiB (2,097,152 bytes).
                  request_id: req_example
        '401':
          description: Missing or invalid bearer credential.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
            WWW-Authenticate:
              schema:
                type: string
              required: false
              description: Bearer authentication challenge, when supplied.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_invalid_token'
              example:
                error:
                  code: invalid_token
                  message: Missing or invalid bearer credential.
                  request_id: req_example
        '403':
          description: >-
            Access denied: forbidden, token_disabled, organization_required,
            insufficient_role, or mfa_required. Check the error code and
            effective permissions.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required
              example:
                error:
                  code: forbidden
                  message: >-
                    Access denied: forbidden, token_disabled,
                    organization_required, insufficient_role, or mfa_required.
                    Check the error code and effective permissions.
                  request_id: req_example
        '404':
          description: The resource does not exist in the current organization.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_not_found'
              example:
                error:
                  code: not_found
                  message: The resource does not exist in the current organization.
                  request_id: req_example
        '409':
          description: >-
            The refund or credit-note relationship conflicts with the current
            state.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_conflict'
              example:
                error:
                  code: conflict
                  message: >-
                    The refund or credit-note relationship conflicts with the
                    current state.
                  request_id: req_example
        '412':
          description: The resource changed. Fetch it again before retrying.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_precondition_failed'
              example:
                error:
                  code: precondition_failed
                  message: The resource changed. Fetch it again before retrying.
                  request_id: req_example
        '429':
          description: The IP or authenticated credential exceeded its request limit.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
            Retry-After:
              schema:
                type: string
                example: '60'
              required: true
              description: Seconds to wait before retrying the request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_rate_limit_exceeded'
              example:
                error:
                  code: rate_limit_exceeded
                  message: >-
                    The IP or authenticated credential exceeded its request
                    limit.
                  request_id: req_example
        '500':
          description: >-
            Unexpected server failure. Include the request ID when contacting
            support.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_internal_error'
              example:
                error:
                  code: internal_error
                  message: >-
                    Unexpected server failure. Include the request ID when
                    contacting support.
                  request_id: req_example
        '503':
          description: >-
            Authentication infrastructure is unavailable or rate limited. Honor
            Retry-After when provided.
          headers:
            X-Request-Id:
              schema:
                type: string
              required: true
              description: >-
                Request identifier for support and diagnostics; also included in
                error bodies.
            Cache-Control:
              schema:
                type: string
                enum:
                  - private, no-store
              required: false
              description: >-
                Organization-scoped API responses must not be cached. May be
                absent for requests rejected before routing.
            X-RateLimit-Limit:
              schema:
                type: string
                example: '120'
              required: false
              description: >-
                Requests per minute for the applicable limiter, when evaluated.
                Authenticated requests use the credential limit; an IP rejection
                uses the IP limit.
            Retry-After:
              schema:
                type: string
                example: '60'
              required: true
              description: Seconds to wait before retrying the request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_service_unavailable'
              example:
                error:
                  code: service_unavailable
                  message: >-
                    Authentication infrastructure is unavailable or rate
                    limited. Honor Retry-After when provided.
                  request_id: req_example
      security:
        - ApiKeyBearer: []
        - ClerkSessionBearer: []
components:
  schemas:
    ClaimRefund:
      type: object
      properties:
        id:
          type: string
          format: uuid
        amount:
          type: string
        currency_code:
          type: string
        comment:
          type:
            - string
            - 'null'
        credit_note_id:
          type:
            - string
            - 'null'
          format: uuid
        created_by_user_id:
          type:
            - string
            - 'null'
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
      required:
        - id
        - amount
        - currency_code
        - comment
        - credit_note_id
        - created_by_user_id
        - created_at
        - updated_at
    Error_validation_error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - validation_error
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_invalid_token:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - invalid_token
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - forbidden
                - token_disabled
                - organization_required
                - insufficient_role
                - mfa_required
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_not_found:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - not_found
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_conflict:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - conflict
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_precondition_failed:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - precondition_failed
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_rate_limit_exceeded:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - rate_limit_exceeded
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_internal_error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - internal_error
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
    Error_service_unavailable:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - service_unavailable
            message:
              type: string
            request_id:
              type: string
            description:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  field:
                    type: string
                  message:
                    type: string
                required:
                  - code
                  - field
                  - message
              maxItems: 20
            workflow_run_id:
              type: string
              format: uuid
            import_id:
              type: string
              format: uuid
            existing_party:
              type: object
              properties:
                type:
                  type: string
                  enum:
                    - supplier
                    - recipient
                id:
                  type: string
                  format: uuid
              required:
                - type
                - id
          required:
            - code
            - message
            - request_id
      required:
        - error
  securitySchemes:
    ApiKeyBearer:
      type: http
      scheme: bearer
      description: >-
        Personal API key. Send X-Organization-Id. The required cumulative level
        is listed in x-watchdog-permission.
    ClerkSessionBearer:
      type: http
      scheme: bearer
      description: Clerk session with an active organization.

````