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

# Effectuate a MED refund debit (THIRD RAIL — moves money)

> Effectuates the refund DEBIT at SPI for an accepted refund (JDPI POST /od, contract §2.24): posts a balanced PENDING Midaz double-entry (contestado debit, clearing credit) and generates the pacs.004. The debit commits on the settlement reconcile poll. The precondition (accepted AND not-yet-effectuated) is checked before any ledger touch; a non-accepted or already-effectuated request returns a coded 422 and a re-delivery is an idempotent no-double-post echo. An unknown id returns a coded 404.



## OpenAPI

````yaml /en/openapi/v3-current/pix.yaml post /v1/med/refunds/{idSolDevolucao}/effectuate
openapi: 3.1.0
info:
  description: Brazilian PIX Direct (DICT + SPI) plugin API.
  title: plugin-br-pix-jd
  version: 1.0.0
servers: []
security:
  - BearerAuth: []
paths:
  /v1/med/refunds/{idSolDevolucao}/effectuate:
    post:
      tags:
        - MED Refunds
      summary: Effectuate a MED refund debit (THIRD RAIL — moves money)
      description: >-
        Effectuates the refund DEBIT at SPI for an accepted refund (JDPI POST
        /od, contract §2.24): posts a balanced PENDING Midaz double-entry
        (contestado debit, clearing credit) and generates the pacs.004. The
        debit commits on the settlement reconcile poll. The precondition
        (accepted AND not-yet-effectuated) is checked before any ledger touch; a
        non-accepted or already-effectuated request returns a coded 422 and a
        re-delivery is an idempotent no-double-post echo. An unknown id returns
        a coded 404.
      operationId: effectuateMedRefund
      parameters:
        - description: The accepted refund-request GUID to effectuate.
          in: path
          name: idSolDevolucao
          required: true
          schema:
            description: The accepted refund-request GUID to effectuate.
            examples:
              - d4e5f6a7-b8c9-0123-def4-56789012345a
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EffectuateRefundView'
          description: OK
        '422':
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Unprocessable Entity
        '500':
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Internal Server Error
        default:
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Error
components:
  schemas:
    EffectuateRefundView:
      additionalProperties: false
      properties:
        effStatus:
          description: >-
            Debit-effectuation FSM code (0=NotStarted, 1=DebitPending,
            2=Settled, 3=Failed).
          examples:
            - 1
          format: int64
          type: integer
        effStatusDescription:
          description: Human-readable eff_status label.
          examples:
            - DebitPending
          type: string
        idOperacaoDebito:
          description: >-
            The Pending Midaz debit posting id (the reconcile commit/cancel
            reference).
          examples:
            - 01HXYZ...
          type: string
        idReqJdPi:
          description: The JDPI /od request id (the debit-poll handle).
          examples:
            - f1e2d3c4-b5a6-7890-1234-567890abcdef
          type: string
        idSolDevolucao:
          description: The effectuated refund-request GUID.
          examples:
            - d4e5f6a7-b8c9-0123-def4-56789012345a
          type: string
      required:
        - idSolDevolucao
        - idReqJdPi
        - effStatus
        - effStatusDescription
        - idOperacaoDebito
      type: object
    Detail:
      additionalProperties: false
      properties:
        code:
          description: >-
            Stable, machine-readable domain error code scoped to the emitting
            service (format: <SERVICE>-NNNN).
          examples:
            - ERR-0001
          type: string
        detail:
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
          examples:
            - Property foo is required but is missing.
          type: string
        errors:
          description: Optional list of individual error details
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type:
            - array
            - 'null'
        instance:
          description: >-
            A URI reference that identifies the specific occurrence of the
            problem.
          examples:
            - https://example.com/error-log/abc123
          format: uri
          type: string
        status:
          description: HTTP status code
          examples:
            - 400
          format: int64
          type: integer
        title:
          description: >-
            A short, human-readable summary of the problem type. This value
            should not change between occurrences of the error.
          examples:
            - Bad Request
          type: string
        type:
          default: about:blank
          description: A URI reference to human-readable documentation for the error.
          examples:
            - https://example.com/errors/example
          format: uri
          type: string
        upstream:
          $ref: '#/components/schemas/Upstream'
          description: >-
            RFC 9457 extension member: the error a proxied third-party provider
            reported. Absent unless the emitting service explicitly surfaced
            one.
      type: object
    ErrorDetail:
      additionalProperties: false
      properties:
        location:
          description: >-
            Where the error occurred, e.g. 'body.items[3].tags' or
            'path.thing-id'
          type: string
        message:
          description: Error message text
          type: string
        value:
          description: The value at the given location
      type: object
    Upstream:
      additionalProperties: false
      properties:
        code:
          description: The upstream provider's own error code, verbatim.
          examples:
            - E4001
          type: string
        message:
          description: >-
            The upstream provider's own error message, verbatim (bounded, never
            its raw response body).
          examples:
            - account not found at provider
          type: string
      type: object
  securitySchemes:
    BearerAuth:
      bearerFormat: JWT
      description: JWT bearer token issued by the identity provider.
      scheme: bearer
      type: http

````