---
title: "Unlock a questionnaire"
method: PUT
path: "/api/v1/questionnaires/{id}/mark_as_incomplete"
tags: ["Questionnaires"]
---

# Unlock a questionnaire

`PUT /api/v1/questionnaires/{id}/mark_as_incomplete`

## Request

- Base URL: `https://api.checkcherry.com`
- URL: `https://api.checkcherry.com/api/v1/questionnaires/{id}/mark_as_incomplete`
- Auth: none declared. Required headers: `Api-Key`

Reopens a completed questionnaire so answers can be changed again. No automated messages fire.

**Required permission:** `assigned_event_read` or `unassigned_event_read`. Fails if the questionnaire is not currently complete.

## Path parameters

- `id` integer, required

## Headers

- `Api-Key` string, required

## Response `200`

questionnaire unlocked

---

[API](https://skmtc.dev/checkcherry/apis/check-cherry-business-api.md) · [All operations](https://skmtc.dev/checkcherry/apis/check-cherry-business-api/llms.txt) · [OpenAPI document](https://skmtc.dev/checkcherry/apis/check-cherry-business-api/revisions/84a9aabdf519?raw)