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# Deprecation Notice: POST /contacts/batch

**Effective: 30 October 2026**

The Update Multiple Contacts endpoint (`POST /contacts/batch`) will be deprecated on **30 October 2026**. This endpoint is being replaced by the newer and more scalable [POST /v3/contacts/import](/reference/import-contacts) API.

## What you need to do

* Migrate all bulk-update operations to `/v3/contacts/import`.
* The deprecated endpoint may stop functioning after the deprecation date.

## Why this change?

* Improved performance and scalability
* More consistent validation and error handling
* Supports larger and asynchronous contact imports