---
title: "Update a subject (Medrio Identifier only)"
method: PUT
path: "/api/study/{studyId}/subject/medrioIdentifier"
tags: ["Subjects"]
---

# Update a subject (Medrio Identifier only)

`PUT /api/study/{studyId}/subject/medrioIdentifier`

## Path parameters

- `studyId` string, uuid, required — Global study ID or external ID

## Request body

- UpdateSubjectRequest
  - `groupId` string, uuid, nullable
  - `isUpdateUncollected` boolean
  - `siteId` string, uuid, nullable
  - `subjectStatusId` string, uuid, nullable
  - `subjectId` string, uuid

## Response `204`

Success

---

[API](https://skmtc.net/medrio/apis/medrio-openapi-v-42-14-0-201.md) · [All operations](https://skmtc.net/medrio/apis/medrio-openapi-v-42-14-0-201/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/medrio/medrio-openapi-v-42-14-0-201/versions/df94f6005a8d/schema)