# How to Debug Synthetic Users

## How to Debug Synthetic User

Follow the steps below to verify that **Synthetic User attribution** is working correctly for your container.

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### 1. Log in to the DCP

Open the DCP and select the container you want to test.

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### 2. Check the Conversion Tag Setup

Ensure the container includes at least one **conversion tag** that uses the variable **Synthetic User Click-ID** in the **Essential Mode Values** column. This is required for proper Synthetic User attribution.

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### 3. Confirm the Campaign Parameter

Navigate to the **Settings** tab of the Synthetic User Model.\
Identify the **Campaign URL Parameter** used for this model (e.g., `utm_campaign`).\
You will need this in a later step.

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### 4. Start a Preview

Go to **Publish**, select your container, and start a **Preview Session**.

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### 5. Open the Debug URL as a New User

Copy the generated Debug URL and open it in a **private/incognito window**.\
This ensures you start with a clean, unrecognized user.

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### 6. Decline Consent

In the preview mode, **decline consent**.\
Synthetic User prediction is explicitly designed for **non-consented** traffic.

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### 7. Add Click ID and Campaign to the URL

Modify the URL to include:

* a **click ID** you want to test
* the **campaign identifier** configured in Step 3

**Example:**

```
https://www.mydomain.at/?fbclid=test_click_id&utm_campaign=test_campaign_identifier
```

Make sure the campaign identifier **exactly matches** the value defined in your Synthetic User Model.

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### 8. Trigger Events to Collect Predictor Data

Perform a few interactions (page views, button clicks, etc.) so the system can collect enough predictor data. This data is used only for model prediction and is **deleted after prediction**. 

{% hint style="info" %}
The predictor data is not visible in the preview or debug monitor, so you need to perform a few interactions on the website to generate the necessary data.
{% endhint %}

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### 9. Repeat for Multiple Test Users

Repeat Steps 5–8 using:

* the **same campaign identifier**
* **different click IDs**

This allows you to simulate multiple Synthetic Users under the same campaign.

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### 10. Make a Conversion Without Consent

Perform a conversion as a **non-consented user**.\
If everything is configured correctly, the system will:

* replace the real click ID with the **Synthetic User Click-ID**
* attribute the conversion to the Synthetic User

This confirms that Synthetic User attribution is working as expected.