---
title: "Add registration relationships to an institution"
method: POST
path: "/institutions/{institution_id}/relationships/registrations/"
tags: ["Institutions"]
---

# Add registration relationships to an institution

`POST /institutions/{institution_id}/relationships/registrations/`

Add registrations to an institution's affiliated registrations relationship.

### Permissions
- Requires write access on each registration being added.
- User must be affiliated with the institution.

## Path parameters

- `institution_id` string, required

## Response `201`

Registrations successfully affiliated with institution.

## Other responses

- `204` — No changes made (registrations already affiliated).
- `400` — Invalid request payload.
- `401` — Authentication credentials were not provided or are invalid.
- `403` — You do not have permission to affiliate these registrations.
- `404` — Institution not found.

---

[API](https://skmtc.net/osf/apis/osf-apiv2-documentation.md) · [All operations](https://skmtc.net/osf/apis/osf-apiv2-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/osf/osf-apiv2-documentation/revisions/ca701048eb0d/schema)