---
title: "Set the simulation time step"
method: PUT
path: "/step/{testid}"
tags: ["meta"]
---

# Set the simulation time step

`PUT /step/{testid}`

Sets the time step used in the simulation.

## Request body

- object
  - `step` number — The new time step to set for the simulation.

## Response `200`

Successful response indicating the time step was updated.

- object
  - `message` string
  - `payload` object — Object containing the updated step value.
    - `step` number, required — The new simulation time step that was set.
  - `status` integer

## Changes

- **2025-11-18** `6f370686638c` — 1 info
  - api tag `meta` added
- **2025-11-18** `addf0e2239dd` — 1 breaking, 1 info
  - the `payload` response's property type changed from `string` to `object` for status `200`
  - added the required property `payload/step` to the response with the `200` status
- **2025-11-18** `60d61eda81c7` — 2 breaking, 1 info
  - the `payload` response's property type changed from `object` to `string` for status `200`
  - removed the required property `payload/step` from the response with the `200` status
  - api tag `Test Setup` removed

[Change history](https://skmtc.dev/ibpsa/apis/boptest-service-api/changes/step/:testid/put.md)

---

[API](https://skmtc.dev/ibpsa/apis/boptest-service-api.md) · [All operations](https://skmtc.dev/ibpsa/apis/boptest-service-api/llms.txt) · [OpenAPI document](https://skmtc.dev/ibpsa/apis/boptest-service-api/revisions/e979b6db7bfd?raw)