---
title: "Managing Custom Fields"
slug: "managing-custom-fields"
updated: 2025-09-02T08:45:12Z
published: 2025-09-16T07:00:05Z
canonical: "docs.insys-icom.com/managing-custom-fields"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.insys-icom.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Managing Custom Fields

This article explains how to create, manage, and delete custom metadata fields – referred to as **Custom Fields** – in your icom Router Management environment. These fields allow you to store router-specific attributes that can later be used for templating purposes (e.g. ASCII configurations), filtering, or targeted rollouts.

> [!TIP]
> ℹ️ **Note:** For guidance on how to assign values to routers or use Custom Fields in templates, refer to the companion article: [**Using Custom Fields**](/kb/docs/using-custom-fields)

---

## What Are Custom Fields?

Custom Fields in iRM are user-defined metadata fields that apply to all routers in your inventory. These fields can hold **free-text (string)** values and serve as dynamic placeholders for:

- **ASCII templates**
- **Router-specific configurations**
- **Update job targeting**
- **Filtering and organization**

Custom Fields are global within your iRM instance, but each router can receive its **own individual value** per field.

---

## Where to Manage Custom Fields

To view or manage Custom Fields:

1. Navigate to **Administration → Settings**
2. Open the tab **Custom Fields**

---

## How to Create a Custom Field

1. Click the **➕ (plus icon)** in the top-right corner of the Custom Fields tab.
2. Enter a **name** for the custom field. This name will be used as the identifier when assigning values or referencing the field in templates. ![](https://cdn.document360.io/c690fe99-a3eb-474c-a449-c2c75e5df119/Images/Documentation/Custom Fields Create(1).png)
3. Optionally, provide a **description** to clarify its purpose or usage context for other users.
4. Click **Create** to save the field.

> [!NOTE]
> 💡 **Field Type**: All Custom Fields are of type `String` – you can store plain text, numeric values, or short identifiers.

---

## How to Delete a Custom Field

To remove an existing Custom Field:

1. Select the field in the table.
2. Click on the **trash bin icon** that appears above the table.
3. A confirmation modal will appear – click **Delete** to permanently remove the field.

> [!WARNING]
> ⚠️ **Important:** Deleting a Custom Field removes it from all associated routers and templates. This action cannot be undone.