---
title: "Configure the tracker's Reference Data Client API timeout"
slug: "configure-the-tracker-s-reference-data-client-api-timeout"
abstract: "Adjust the tracker's Reference Data Client API timeout."
---
# Configure the tracker's Reference Data Client API timeout

| Applies to | Content Delivery |
| --- | --- |
| Configuration file | `c:\path\to\sitecore\root\App_Config\Sitecore\Marketing.Xdb.ReferenceData.Client\Sitecore.Xdb.ReferenceData.Client.config` |

The Content Delivery role uses the Reference Data Client API to read and write Geo IP, device, and user agent data to the Reference Data service. You can modify the `timeout` parameter as demonstrated in the following example:

```xml
<timeoutHttpClientModifier type="Sitecore.Xdb.Common.Web.TimeoutHttpClientModifier, Sitecore.Xdb.Common.Web">
                <param name="timeout">`00:00`:10</param> <!-- Default value: `00:01`:40 (100 seconds) -->
</timeoutHttpClientModifier>

```