---
title: "All Contacts: Anonymize Contact"
slug: "all-contacts-anonymize-contact"
updated: 2026-08-04T08:29:16Z
published: 2026-08-04T08:29:16Z
canonical: "docs.mapp.com/all-contacts-anonymize-contact"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# All Contacts: Anonymize Contact

## Overview

The **Anonymize Contact** action permanently removes all personal data associated with a contact to meet data privacy requirements. This ensures that sensitive information cannot be recovered or misused.

---

### Important Information

The *Anonymize Contact* action takes effect immediately. There is no confirmation step.

Once anonymized, the system:

- Displays a success message.
- Sends an email confirmation indicating the Contact ID and email have been anonymized.
- Irreversibly hashes the contact's email address, profile data, and message history using Secure Hash Algorithm 3 (SHA-3).
- Deletes the contact from the system.

The anonymization is permanent. The contact cannot be restored, and their history cannot be recovered.

However, the user can be re-added to the system later. A new Contact ID is created in this case, and no previous data or history is linked to the new record.

Anonymizing a contact is one of several ways a contact can become permanently unreachable. For a complete overview, see [How a Contact Stops Receiving Messages](/v1/docs/engage-how-contacts-stop-receiving-messages).

---

## Navigation Path

1. Go to *Audience > Contact Management > All Contacts*
2. Locate the desired contact.
3. In the *Actions* column, select **Anonymize Contact**.

![](https://cdn.document360.io/554b9b98-6720-4d8b-9919-c7b203d72648/Images/Documentation/image-Q72PR7FH.png)

---

## Actions

| **Action** | Description |
| --- | --- |
| **Anonymize Contact** | Immediately anonymizes the selected contact. The action has no confirmation step and takes effect at once. |

### 

A unique identifier automatically assigned by Mapp Engage when a new contact is added to the system.

- The **Contact ID** cannot be changed or edited.
- In some parts of Mapp Cloud, this identifier may also be referred to as **User ID**, but both terms describe the same concept.
- You can find the Contact ID by going to *Audience > Contact Management > All Contacts* and checking the ID column.

## Related

- [Contact Management](/audience-contact-management.md)