---
title: "File a corrected file onto an existing document"
method: POST
path: "/api/v1/rest/documents/{id}/versions"
tags: ["Documents"]
---

# File a corrected file onto an existing document

`POST /api/v1/rest/documents/{id}/versions`

## Request

- Base URL: `https://api.custodo.ai`
- URL: `https://api.custodo.ai/api/v1/rest/documents/{id}/versions`
- Auth: HTTP bearer

Adds a NEW version of an existing document from base64 bytes and restarts its pipeline (conversion, then extraction, then indexing) on the new file — use this for "wrong scan, here is the right one", never for a different document (documents_upload is for that). The record, its type and its extracted fields are untouched until the new version finishes converting; poll documents_get to see `status` become "ready" again. Same base64 size limit as documents_upload: up to 8 MB decoded.

## Path parameters

- `id` string, uuid, required

## Headers

- `X-Tenant-Id` string, uuid

## Request body

- object
  - `filename` string, required: With its extension, e.g. `fattura-123.pdf`.
  - `content_base64` string, required: The file’s bytes, base64-encoded.

## Response `200`

Done. `data` is the tool’s own answer.

- RestResult
  - `ok` true, required
  - `data` unknown, required

## Other responses

- `400`: The arguments did not validate: `error.message` names the field, what it expects and what arrived.
- `401`: No API key, or one that is malformed, unknown, revoked or expired.
- `403`: The call never ran: the module is off for this organisation, the credential lacks the permission or the module, the tier does not cover it, or the tool is destructive and the key was not minted for that.
- `404`: Nothing with that id in this organisation.
- `409`: The record is in a state that does not allow it — under legal hold, already sent, already closed. `error.code` says which.
- `422`: The tool ran and refused, in a sentence of its own (`TOOL_REFUSED`): the message says what to change. Retrying the same call will not help.
- `429`: The API key has spent its minute, or its day. Every request a key makes counts. See `Retry-After`.

---

[API](https://skmtc.dev/custodo/apis/custodo-integrazioni.md) · [All operations](https://skmtc.dev/custodo/apis/custodo-integrazioni/llms.txt) · [OpenAPI document](https://skmtc.dev/custodo/apis/custodo-integrazioni/revisions/16d336d3ec2a?raw)