---
title: "Open an activity month for an emissions source"
method: POST
path: "/v1/carbon_accounting/activity_periods/open_activity_month"
tags: ["Carbon accounting"]
---

# Open an activity month for an emissions source

`POST /v1/carbon_accounting/activity_periods/open_activity_month`

Opens a previously closed activity month for a specific emissions source, allowing modifications to the period.

## Query parameters

- `emissions_source_id` string, uuid, required
- `month` string, required

## Response `204`

Activity month successfully opened

## Other responses

- `400` — Your request is missing a parameter or has the wrong data type
- `403` — You are not authorized to acess this object

---

[API](https://skmtc.net/sinai/apis/sinai-api.md) · [All operations](https://skmtc.net/sinai/apis/sinai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sinai/sinai-api/revisions/495dab1b31fd/schema)