---
title: "Changes to Update the contents of a collection"
method: PUT
path: "/v1/collections/{collection_id}/content"
---

# Changes to Update the contents of a collection

`PUT /v1/collections/{collection_id}/content`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 30 revisions.

- **2026-09-02** `5da2740beeb5`: 1 info

## Changes

- **2026-09-02** `5da2740beeb5`: 1 info
  - added the media type `application/json` for the response with the status `429`

---

[Operation](https://skmtc.dev/customer/apis/customer-io-journeys-api-reference/docs/v1/collections/:collection_id/content/put.md) - [API](https://skmtc.dev/customer/apis/customer-io-journeys-api-reference.md) - [Page](https://skmtc.dev/customer/apis/customer-io-journeys-api-reference/changes/v1/collections/:collection_id/content/put)