---
title: "The Preserve Config Value"
slug: "the-preserve-config-value"
updated: 2020-05-06T16:10:13Z
published: 2020-05-06T16:10:13Z
---

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

# The Preserve Config Value

## The preserve config value

If the preserve config value is set to true, then the base set of parameters collected during the track call will remain unmodified by later calls to `multiTrack`.

For example, if you set this flag to false and then called multitrack with a argument of `['DCSext.foo', 'test']` , the value `foo` would show up in all multitrack calls that followed the frist multitrack call.

**Default value:** true

**JavaScript Example:**

```
window.webtrendsAsyncInit = function () {
        var dcs = new Webtrends.dcs();
        dcs.init( {
                dcsid: "dcs9x99xxxx9xxx9xx9xxxx9x_9x9x",
                preserve: false
        });
        dcs.track();
}
```