---
title: Define network service instance details
description: Create an application service instance using the Telecommunications Network Inventory application. You can create service instances to model different types of network functions.Created topics for STRY55389656 - DOC1072742
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/telecom-network-inventory/telecommunications-network-inventory/create\_application\_services.html
release: australia
product: Telecommunications Network Inventory
classification: telecommunications-network-inventory
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Manage your network functions, Define inventory records, Use, Telecommunications Network Inventory]
---

# Define network service instance details

Create an application service instance using the Telecommunications Network Inventory application. You can create service instances to model different types of network functions.

## Before you begin

Role required: sn\_ni\_core.inventory\_admin, sn\_ni\_core.inventory\_agent, sn\_ni\_core.telco\_inventory\_catalog\_manager.

## About this task

When you create a network service instance record, it creates a corresponding configuration item \(CI\) record in the Network Service Instance \[cmdb\_ci\_network\_service\_instance\] table.

## Procedure

1.  Navigate to **Workspaces** > **Network Inventory Workspace**.

2.  Select the list icon \(\[Omitted image "ni-workspace-list-icon.png"\] Alt text: List icon.\), and then select **Services** > **Service Instance**.

3.  Select **New**.

4.  On the Service Instance form, fill in the fields.

    To learn more about fields, see [Service Instance form](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/telecom-network-inventory/telecommunications-network-inventory/application-service-instance-form.md).

5.  To create the Telecommunications Network Inventory attributes for the Service Instance form, select **Set Inventory Attributes**.

    When you select the **Set Inventory Attributes** button, it creates a reference in the CI table.

    **Note:**

    If you select **Save** without selecting **Set Inventory Attributes**, it creates a CI record but not a Telecommunications Network Inventory CI record.

6.  On the TNI CI Attributes form, fill in the fields.

    To learn more about the Telecommunications Network Inventory attribute fields, see [TNI CI Attributes form](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/telecom-network-inventory/telecommunications-network-inventory/ci-attribue-form.md).

7.  Select **Save**.

    The Telecommunications Network Inventory attribute fields are displayed on the Service Instance form after you save the TNI CI Attributes form. The **Set Inventory Attributes** doesn't appear when you reopen the CI record.


**Parent Topic:**[Manage your network functions](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/telecom-network-inventory/telecommunications-network-inventory/services.md)