---
title: "Trigger referral"
method: POST
path: "/campaign/{id}/participant/{participantIdOrEmail}/ref"
tags: ["Participants"]
---

# Trigger referral

`POST /campaign/{id}/participant/{participantIdOrEmail}/ref`

Triggers referral credit for an existing referred participant by GrowSurf participant ID or email address.

## Path parameters

- `id` string, required
- `participantIdOrEmail` string, required

## Response `200`

Referral trigger result returned.

- ReferralTriggerResponse
  - `success` boolean, required
  - `message` string

## Other responses

- `400` — Invalid request.
- `401` — Authorization is missing or invalid.
- `403` — The API key is not allowed to perform this action.
- `404` — Resource not found.
- `422` — Request is not valid for the current program or participant state.
- `429` — Too many requests.

---

[API](https://skmtc.net/growsurf/apis/growsurf-rest-api.md) · [All operations](https://skmtc.net/growsurf/apis/growsurf-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/growsurf/growsurf-rest-api/revisions/26f06e273394/schema)