---
title: "Changes to Upsert object"
method: POST
path: "/api/v1/cdp/custom-objects"
---

# Changes to Upsert object

`POST /api/v1/cdp/custom-objects`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 3 revisions.

- **2026-11-03** `7c7a773b12ce`: 2 info

## Changes

- **2026-11-03** `7c7a773b12ce`: 2 info
  - added the new optional request property `createMissing`
  - added the new optional request property `mode`

---

[Operation](https://skmtc.dev/useboom/apis/boom-api/docs/api/v1/cdp/custom-objects/post.md) - [API](https://skmtc.dev/useboom/apis/boom-api.md) - [Page](https://skmtc.dev/useboom/apis/boom-api/changes/api/v1/cdp/custom-objects/post)