---
title: "act: correct"
description: "the id of the wrong event, and the right facts to a correcting event"
section: reference
address: /reference/act/correct
contract: 0476e35e6e275db5
---
# act: correct
the id of the wrong event, and the right facts to a correcting event
[figure: The caller sends CorrectInput to /v1/act/correct. The platform returns a card whose body is Event.]
POST/v1/act/correct
Correct an event. The call needs the strategy rung under a token with the act grant, and it is served by the platform.
The route takes [CorrectInput](/concepts/correctinput) and returns a card whose body is [Event](/concepts/event).
## Request body
The request body is [CorrectInput](/concepts/correctinput).
| field | type | required | note |
|---|---|---|---|
| `event` | `id` | yes | |
| `correction` | [Event](/concepts/event) | yes | |
| `why` | `text` | yes | |
## Response
The route returns a card whose body is [Event](/concepts/event). Every card ends with a foot that states the basis of each number, the scope of the call, and the time when the facts were true.
## Headers
| header | required | meaning |
|---|---|---|
| `Scale-Scope` | yes | the scope the call runs in: tenant/, then /brand/, then /strategy/ |
| `Scale-As-True-On` | no | the date the facts must have been true on; defaults to now |
| `Scale-As-Known-On` | no | the date the facts must have been known on; defaults to now |
| `Scale-Key` | no | for a change, the key made from the input; a repeat under the same key returns the unit held and writes nothing |
A caller needs the strategy rung and a token with the act grant. The platform serves this route.
## Example
The example sends the smallest body that CorrectInput allows. The build validates it against the schema of CorrectInput.
Example
```sh
curl -X POST https://api.scaleintelligence.co/v1/act/correct \
-H "Scale-Key: $SCALE_KEY" -H "Scale-Scope: tenant/" \
-H "content-type: application/json" \
-d '{ "event": "…", "correction": { "flow": "…", "unit": "…", "at": "…", "by": { "kind": "a user", "came_in_through": "a session", "access_scopes": [], "tenant": "…", "grants": [] }, "plane": "tenant plane", "outcome": "…", "run": "…" }, "why": "…" }'
```
```typescript
import { client } from "@scale/sdk";
const answer = await client.act.correct({
"event": "…",
"correction": {
"flow": "…",
"unit": "…",
"at": "…",
"by": {
"kind": "a user",
"came_in_through": "a session",
"access_scopes": [],
"tenant": "…",
"grants": []
},
"plane": "tenant plane",
"outcome": "…",
"run": "…"
},
"why": "…"
});
// answer.body is a Event. answer.foot holds the basis, the scope and the time.
```
```python
import requests
answer = requests.post("https://api.scaleintelligence.co/v1/act/correct",
headers={"Scale-Key": KEY, "Scale-Scope": "tenant/"},
json={
"event": "…",
"correction": {
"flow": "…",
"unit": "…",
"at": "…",
"by": {
"kind": "a user",
"came_in_through": "a session",
"access_scopes": [],
"tenant": "…",
"grants": []
},
"plane": "tenant plane",
"outcome": "…",
"run": "…"
},
"why": "…"
}).json()
```
```rust
let answer: Card = client.post("https://api.scaleintelligence.co/v1/act/correct")
.header("Scale-Key", key).header("Scale-Scope", "tenant/")
.json(&CorrectInput { /* the fields of the page */ }).send().await?.json().await?;
```