# reactToNote

mutation · in the family [Your own session](/reference/your-own-session/)

## What it does

React to a note with one of the canned emojis — a lightweight mark everyone can see and count.

React to ONE note: one mark per (you, emoji) — a duplicate refuses CONFLICT (remove it first); emoji ∈ the canned token set (thumbs_up, check, question, eyes, tada, warning, plus, heart — STRICT). The note must exist on the named target in your workspace. Answers the note's FRESH reaction groups. Requires authentication.

## What happens

One mark per person per emoji on a note; reacting again with the same emoji is refused — remove yours first to change your mind. The note itself never changes.

## Who may call it

Capability area: **Your own session** — What every signed-in person may do for themselves — their session, their profile and their own work.

- Owner
- System Administrator
- Manager
- Associate Manager
- Warehouse Associate
- Sales Associate
- Cashier
- An API key whose scope allows `api:reactToNote`

## Arguments

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `targetConstructId` | [ID](/types/#scalars) `ID!` | yes | No further notes. |
| `noteId` | [ID](/types/#scalars) `ID!` | yes | No further notes. |
| `emoji` | [String](/types/#scalars) `String!` | yes | No further notes. |

## Returns

[NoteReactionGroup](/types/NoteReactionGroup/) `[NoteReactionGroup!]!` — One reaction group.

## Example request

```graphql
mutation ExampleReactToNote($targetConstructId: ID!, $noteId: ID!, $emoji: String!) {
  reactToNote(targetConstructId: $targetConstructId, noteId: $noteId, emoji: $emoji) {
    emoji
    count
    userIds
  }
}
```

Variables:

```json
{
  "targetConstructId": "01900000-0000-7000-8000-79e077380000",
  "noteId": "01900000-0000-7000-8000-cf06f4680000",
  "emoji": "<emoji>"
}
```

Send it with the envelope naming the version: `"extensions": {"at": {"version": {"name":"genesis","number":0}}}`.

## Example response

```json
{
  "data": {
    "reactToNote": [
      {
        "emoji": "<emoji>",
        "count": 1,
        "userIds": [
          "01900000-0000-7000-8000-f79e33c40000"
        ]
      }
    ]
  },
  "extensions": {
    "at": {
      "callId": "01EXAMPLE-CALL-ID",
      "version": {
        "requested": {
          "name": "genesis",
          "number": 0
        },
        "serviced": {
          "name": "genesis",
          "number": 0
        }
      }
    }
  }
}
```

## Errors this call can answer

- `VALIDATION/INVALID` — Something in the request is not valid. ([VALIDATION](/errors/VALIDATION/))
- `AUTHN/REQUIRED` — Sign in to do this. ([AUTHN](/errors/AUTHN/))
- `AUTHZ/FORBIDDEN` — Your role does not allow this action. ([AUTHZ](/errors/AUTHZ/))
- `RATE_LIMIT/THROTTLED` — Too many requests in a short time. ([RATE_LIMIT](/errors/RATE_LIMIT/))
- `NOT_FOUND/*` — That record could not be found. ([NOT_FOUND](/errors/NOT_FOUND/))
- `CONFLICT/*` — The record’s state, or a change made in the meantime, does not allow this; the codes are on the CONFLICT page. ([CONFLICT](/errors/CONFLICT/))
- `VALIDATION/VERSION_REQUIRED` — The request did not say which app version it came from. ([VALIDATION](/errors/VALIDATION/))

## Used in

- [Give the team its work — tasks, labels, hand-offs](/use-cases/give-the-team-its-work/)