> ## Documentation Index
> Fetch the complete documentation index at: https://moengage-doc-2312-standard-user-attributes.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Why Is an Anonymous User Profile Created with an Uninstall Event Linked to a Campaign ID?

> Find out why anonymous user profiles appear with uninstall events tied to campaign IDs, and how to trace the campaign that triggered them.

## Problem

An anonymous user profile is created containing only an uninstall event. It contains no actual user information and does not map to a registered profile.

<img alt="anonymous user.png" src="https://mintcdn.com/moengage-doc-2312-standard-user-attributes/uQQBVo0IZQG5v4hi/images/moengage_b5c3c4.png?fit=max&auto=format&n=uQQBVo0IZQG5v4hi&q=85&s=d8448c3f8e266f79423e64987a8f5924" width="936" height="409" data-path="images/moengage_b5c3c4.png" />

## Solution

Perform the following steps:

* Expand the uninstall event in the **Activity info** to check for campaign details.
* Locate the **Campaign ID** associated with this event.

<img alt="campaign id.png" src="https://mintcdn.com/moengage-doc-2312-standard-user-attributes/Vbu6BZRS_e2sKCk2/images/moengage_d2c7ce.png?fit=max&auto=format&n=Vbu6BZRS_e2sKCk2&q=85&s=74e4f21516a45d572b42810c0e2ac2c6" width="936" height="416" data-path="images/moengage_d2c7ce.png" />

* Search for the **Campaign ID** in the dashboard.
* If the campaign was scheduled for **All Users**, it indicates that the user had uninstalled the application before the campaign could be delivered.

Since MoEngage did not receive the proper uninstall callback for this user, a guest profile was created to track this uninstall event. This process ensures that the uninstall event is recorded, even without mapping it to a registered user profile.