---
title: "Changes to Record a subscriber state by contact ID"
method: POST
path: "/marketing/marketing-events/2026-03/events/{externalEventId}/{subscriberState}/upsert"
---

# Changes to Record a subscriber state by contact ID

`POST /marketing/marketing-events/2026-03/events/{externalEventId}/{subscriberState}/upsert`

> Every recorded change to this operation, newest first.
> 14 revisions in range; 1 not diffed, 2 could not be searched.

## Timeline

Changed in 2 of 14 revisions.

- **2026-04-08** `b0d8bc008db9`: 1 info
- **2026-03-25** `62586336cea2`: 1 info

## Changes

- **2026-04-08** `b0d8bc008db9`: 1 info
  - api operation id `post-/marketing/marketing-events/2026-03/events/{externalEventId}/{subscriberState}/upsert_upsertByContactId` removed and replaced with `post-/marketing/marketing-events/2026-03/events/{externalEventId}/{subscriberState}/upsert`
- **2026-03-25** `62586336cea2`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/hubspot/apis/hubspot-api-specification/docs/marketing/marketing-events/2026-03/events/:externalEventId/:subscriberState/upsert/post.md) - [API](https://skmtc.dev/hubspot/apis/hubspot-api-specification.md) - [Page](https://skmtc.dev/hubspot/apis/hubspot-api-specification/changes/marketing/marketing-events/2026-03/events/:externalEventId/:subscriberState/upsert/post)