---
title: "Debug mode"
slug: "debug-mode"
updated: 2025-08-05T11:10:27Z
published: 2025-08-05T11:10:27Z
canonical: "docs.mapp.com/debug-mode"
---

> ## 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.

# Debug mode

You can activate a debug mode in the Mapp Intelligence GTM template to inspect how tracking data is processed and submitted.

## How it works

Once activated, the template logs all relevant calls to the Smart Pixel directly to the JavaScript console of your browser. This helps you verify:

- Which settings are being applied
- What data is included in each request
- When and how a request is sent

This is particularly useful during implementation and testing phases.

> [!WARNING]
> Important
> 
> Only use debug mode in development environments. Console logging can negatively impact performance and should never be enabled in production.

---

## How to activate

In the GTM tag configuration, enable the option “Activate logging”.

![](https://cdn.document360.io/554b9b98-6720-4d8b-9919-c7b203d72648/Images/Documentation/b9a98710-981c-45dd-9c87-e8c1fd1b4649.png)

When enabled, detailed messages will appear in the console each time the tag is triggered.

---

## Example output

When debug logging is active, you will see a call to wtSmart.advanced.add() in your browser console, including all applied options and configurations:

```javascript
{
  execCDB: true,
  optOutName: "mi_opt_out",
  forceOldEverId: true,
  secureCookie: true,
  requestQueue: {
    activated: true,
    resendInterval: 5000,
    ttl: 300000,
    size: "100"
  },
  useHashForDefaultPageName: true,
  useParamsForDefaultPageName: ["category", "brand"]
}
```

The actual output will vary depending on your tag configuration.