---
title: "The personalization variables this campaign's steps can use"
method: GET
path: "/business/campaigns/{campaignId}/variables"
tags: ["Campaigns"]
---

# The personalization variables this campaign's steps can use

`GET /business/campaigns/{campaignId}/variables`

## Request

- Base URL: `https://api.tryfuse.ai/api/v1`
- URL: `https://api.tryfuse.ai/api/v1/business/campaigns/{campaignId}/variables`
- Auth: HTTP basic

Lists the custom and smart column tokens the campaign's steps can personalise with, deduplicated across the campaign's source lists (the first list that defines a column name wins, which is how values resolve at send time). Paste a `token` verbatim into a step's subject or body and it is substituted per lead when the message is sent. Columns whose name contains a brace or a pipe are skipped because they could never form a usable token. Built-in tokens such as {Contact First Name} are always available and are not listed here. Only the token owner's own campaigns resolve, and a deleted campaign answers 404. Rate limit: 30 requests/minute and 1,000/day per token owner, shared by every campaign, scheduled-send, campaign-template and knowledge-hub endpoint.

Errors:
- `404` `CAMPAIGN_NOT_FOUND` — No campaign with this id exists, it belongs to another account (including a campaign delegated to you or shared by your team's visibility settings), or it has been deleted.
- `422` `VALIDATION_FAILED` — campaignId is not a 24-character hex id.
- `429` `RATE_LIMITED` — More than 30 campaign requests in a minute, or 1,000 in a day, for this token owner (the bucket is shared by every /business/campaigns, /business/scheduled-sends, /business/campaign-templates and /business/knowledge-hubs call).
- `500` `UNEXPECTED_ERROR` — An unhandled failure; the detail stays in our logs and is never returned.

Requires one of the following token scopes: campaigns.

## Path parameters

- `campaignId` string, required: The campaign's id (24-character hex ObjectId), as returned by POST /business/campaigns or as the campaignId of a GET /business/campaigns row.

## Response `200`

Success

- object
  - `variables` object[], required
    - `token` string, nullable, required: The literal token to paste into a step, for example {Column: Lead Score}.
    - `name` string, nullable, required: The column's name.
    - `type` string, nullable, required: The column's value type (for example text, number, enum, date).
    - `listId` string, nullable, required: The list that defines the column.
    - `listName` string, nullable, required

## Other responses

- `400`: Error
- `401`: Error
- `402`: Error
- `403`: Error
- `404`: Error
- `409`: Error
- `422`: Error
- `429`: Error
- `500`: Error

---

[API](https://skmtc.dev/fuseai/apis/fuse-business-api.md) · [All operations](https://skmtc.dev/fuseai/apis/fuse-business-api/llms.txt) · [OpenAPI document](https://skmtc.dev/fuseai/apis/fuse-business-api/revisions/50d95e0536f4?raw)