# What is Service URL during System Configuration?

### Description

During system configuration, there is a field where user needs to enter the Service URL. Now what does <code class="expression">space.vars.SITENAME</code> accept in the Service URL field.

### Solution

Service URL is a mandatory field during system configuration that is used to provide OpsHubTFSService URL. <code class="expression">space.vars.SITENAME</code> requires OpsHubTFSService to communicate with Team Foundation Server (TFS) and Azure DevOps.

Refer [Why <code class="expression">space.vars.SITENAME</code> needs OpsHubTFSService?](/opstech-docs/7.223/help-center-index/faqs/tfs-faqs/purpose-of-opshubtfsservice.md) section to learn more about OpsHubTFSService.

You need to register OpsHubTFSService before providing URL in Service URL field. Refer [How to register OpsHubTFSService?](/opstech-docs/7.223/help-center-index/faqs/tfs-faqs/register-opshubtfsservice.md) to learn about how to register OpsHubTFSService.

By default, OpsHubTFSService is registered on port number `9090`, but in case you want to register on a different port, then refer [How to change default OpsHubTFSService port number?](/opstech-docs/7.223/help-center-index/faqs/tfs-faqs/register-opshubtfsservice-other-port.md).


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