---
title: "Upsert On Call Assignment"
method: PUT
path: "/on-call-schedule/assignments/{assignment_date}"
tags: ["On-Call Schedule"]
---

# Upsert On Call Assignment

`PUT /on-call-schedule/assignments/{assignment_date}`

Set the on-call user for a date (creates or replaces the assignment).

## Path parameters

- `assignment_date` string, date, required

## Request body

- UpsertOnCallAssignmentRequest
  - `user_id` string, uuid, required — User to put on call for this date

## Response `200`

Successful Response

- OnCallAssignmentResponse
  - `assignment_date` string, date, required — Date this assignment applies to (in the firm's timezone)
  - `user_id` string, uuid, required — User on call for this date

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/openintake/apis/fastapi.md) · [All operations](https://skmtc.dev/openintake/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openintake/fastapi/revisions/b642b91e0a5c/schema)