---
title: "Step 5. Specify Service Account"
description: "At the Service Account step of the wizard, specify credentials of the account under which the Veeam ONE services will run. The user name must be specified in the DOMAIN\\USERNAME format. Alternatively click Choose to select an existing user account."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/advanced_specify_sa_web.html"
breadcrumb: "User Guide > Installing Veeam ONE > Custom Installation > Installing Veeam ONE Web Services > Step 5. Specify Service Account"
dateModified: "2026-10-23"
---

# Step 5. Specify Service Account

At the **Service Account** step of the wizard, specify credentials of the account under which the Veeam ONE services will run. The user name must be specified in the *DOMAIN\\USERNAME* format. Alternatively click **Choose** to select an existing user account.

For details on required permissions for the service account, see [Veeam ONE Service Account](service_account.md).

[![Veeam ONE Specify Service Account Credentials](images/typical_installation_service_account.png "Veeam ONE Specify Service Account Credentials")](images/typical_installation_service_account.png){.toggle scale=60}