---
title: "409 Conflict - Duplicate Record"
description: "409 Conflict - Duplicate Record"
keywords: "409 Conflict - Duplicate Record Hubspot Error Message"
url: "https://myrapidi.com/wiki/409_conflict_duplicate_record"
locale: "en"
published: "2025-05-26T14:28:48Z"
modified: "2025-05-27T08:10:17Z"
---

**Message:**  
 `Contact already exists. Existing ID: XXXXXXXXXXX`

**Cause:**  
 Trying to create a contact (or deal, company, etc.) that already exists—usually due to duplicate **email** or **unique custom property**.

**Fix:**

- Use the object’s existing ID to update instead of creating a new one.
- Before creating a contact in your source system, ensure that it has an unique email addresses. A validation on the uniqueness of the email address can be enabled in the source system so duplicates are avoided. 
- Use an unique id/key for all new and existing contacts so you can ensure uniqueness across all systems ( e.g. store the Hubspot Id into the source system).