---
title: "Open Contract Window"
method: POST
path: "/ui/openwindow/contract"
tags: ["User Interface"]
---

# Open Contract Window

`POST /ui/openwindow/contract`

Open the contract window inside the client

## Query parameters

- `contract_id` integer, required — The contract to open

## Headers

- `Accept-Language` 'en' | 'de' | 'fr' | 'ja' | 'ru' | 'zh' | 'ko' | 'es'
- `If-None-Match` string
- `X-Compatibility-Date` '2025-12-16', date, required
- `X-Tenant` string
- `If-Modified-Since` string

## Response `204`

Open window request received

## Other responses

- `default` — Error

## Changes

- **2026-07-27** `0b913165e49c` — 1 info
  - added the optional property `status` to the response with the `default` status

[Change history](https://skmtc.dev/evetech/apis/eve-spring-inebriation-esi-tranquility/changes/ui/openwindow/contract/post.md)

---

[API](https://skmtc.dev/evetech/apis/eve-spring-inebriation-esi-tranquility.md) · [All operations](https://skmtc.dev/evetech/apis/eve-spring-inebriation-esi-tranquility/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/evetech/eve-spring-inebriation-esi-tranquility/revisions/60310e4513a4/schema)