# Reject a card

`POST https://evohub.io/api/v1/board/cards/{cardID}/reject`

Part of the [Board API](https://docs.evohub.io/board.md) reference · operationId `rejectCard`.

Sends a card waiting in review back to the list it came from. A
`reason` (at most 10,000 characters) is posted as a comment on the
card. Assignees may reject their own card. Send `{}` for no reason.

Requires the `board:review:write` scope.

## Authorization

Any one of:

- `bearerKey`
- `headerKey`

Where:

- `bearerKey`: HTTP Bearer — An EvoHub API key (`evohub_…`) as a bearer token.
- `headerKey`: API key in the header `X-API-Key` — An EvoHub API key (`evohub_…`).

## Path parameters

- `cardID` (string, required, example `crd_9f2e4d6c8b0a1e3f5d7c9b1a3e5f7d90`): The card's ID.

## Request body (required)

Content type: `application/json`

Type: `object`

- `reason` (string, max length 10000)

## Responses

### 204 — The card is back in its earlier list.

### 400 — The body is not JSON for this endpoint, or carries a field it does not know (`INVALID_BODY`), or a field breaks a rule (`VALIDATION_ERROR`; the message says which).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 401 — No API key was sent, or it is unknown, revoked or expired (`UNAUTHORIZED`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 403 — The key lacks the scope this endpoint needs (`FORBIDDEN`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 404 — It does not exist, or it is on a board the caller cannot see (`NOT_FOUND`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 409 — The card is not waiting for review (`NOT_IN_REVIEW`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 429 — Too many requests (`RATE_LIMITED`). Wait for `Retry-After` seconds.

Headers:

- `Retry-After` (integer): Seconds to wait before retrying.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 500 — Something went wrong on EvoHub's side (`INTERNAL_ERROR`). Retry later.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

## Example request

```bash
curl -X POST 'https://evohub.io/api/v1/board/cards/crd_9f2e4d6c8b0a1e3f5d7c9b1a3e5f7d90/reject' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <TOKEN>' \
  -d '{
  "reason": "The production rotation is missing from the runbook."
}'
```