# Custom Fields

Custom Fields in MDM let you define your own additional attributes on managed devices that are not included by default. These fields can help you capture business-specific information such as Department, Cost Center, Warranty Vendor, Assigned Location Zone etc.

Once created, these fields are automatically included in device inventory records and used for reporting, sorting, filtering, and exporting. Custom fields help improve asset tracking and organizational reporting.

For example: John, an IT administrator, wants to track company-owned assets by capturing details such as asset ID, purchase date, and warranty status. He can create custom fields to store this information and define rules to organize and manage devices efficiently.

## Pre-requisites

To manage custom fields, users must have the appropriate role-based permissions assigned.

1. User with ADMINISTRATOR role: Create, edit, and delete custom field definitions.
2. User with WRITE role for Inventory: Perform bulk uploads for updating custom field values through the inventory module.
3. User with WRITE role for Enrollment: Edit custom field values during device enrollment.

## Where Custom Fields Appear

You can view the created custom fields in the following places:

1. Enrollment -> Devices
2. Inventory -> Devices > Select a device.

   ![Custom Fields 1](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields1.png)

**Note:** Custom Fields are currently not supported for Laptops.

## How to Create a Custom Field

To add a new custom field:

1. Log in to the Mobile Device Manager Plus console with an administrator role.
2. Navigate to **Inventory → Devices.**
3. Locate the **+ Add Custom Field** or navigate to **Admin → Custom Fields.**

   ![Custom Fields 2](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields2.png)

   ![Custom Fields 3](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields3.png)

4. Click on the **Add Custom Field.**
5. Give the **Field Name** based on the Custom Field you want to add.
6. Check the **PII Column** to mask your Custom Field data as personal information.
7. Select **Input Format** and specify the **Size**.
8. Give a **Default value** based on your requirement.
9. Give the **Description** of your Custom Field based on your requirement.
10. Click on **Add** to add your custom field.

## Input Formats

You can select from the following predefined input formats:

- **Alphanumeric:** Allows letters and numbers.
- **Numbers:** Allows numeric values.
- **True/False:** Allows a Boolean value.
- **File Upload:** Allows users to upload a file.

File uploads are supported only in the following formats:

- Compressed archives: .7z, .arj, .pkg, .rar, .tar.gz, .z, .zip
- Data files: .csv, .dat, .log, .sav, .tar, .xml
- Image files: .bmp, .gif, .ico, .jpeg, .jpg, .png, .tif, .tiff
- Presentation files: .key, .odp, .pps, .pptx
- Scripts: .sh
- Spreadsheet files: .ods, .xlsx
- Document files: .docx, .odt, .pdf, .rtf, .tex, .txt

![Custom Fields 4](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields4.png)

You can also create a custom input format by defining the following details:

- Name — Specify a name for the custom format.
- Primary Format — Select the base format, such as Alphanumeric or Numbers.
- Size — Define the maximum size allowed for the input.
- Allowed Values — Specify the values that users can enter or select.
- Default Value — Define a default value for the field.

![Custom Fields 5](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields5.png)

## Bulk Importing Custom Field Values

You can import custom field values in bulk using a CSV file.

To bulk import custom field values:

1. Navigate to **Inventory → Bulk Import.**

   ![Custom Fields 6](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields6.png)

2. Select **Import Custom Field Values.**

   ![Custom Fields 7](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields7.png)

3. Upload the CSV file containing the device UDID and the corresponding Custom Field values.

The CSV file must contain the UDID and the custom field values as comma-separated columns.

## Modifying and Removing Custom Fields

To modify or delete a custom field:

1. Go to **Admin → Custom Fields.**
2. Select an existing field > Click **Edit** to change the name, description, or default value.

   ![Custom Fields 8](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields8.png)

3. Click **Delete** to remove the field from all the places and reports.

To edit custom fields value in bulk:

1. Navigate to Enrollment > Select the required devices.

   ![Custom Fields 9](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields9.png)

2. Click on the Edit icon near the Custom Field.

   ![Custom Fields 10](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields10.png)

   ![Custom Fields 11](https://cdn.manageengine.com/sites/meweb/images/mobile-device-management/images/custom-fields11.png)

3. Enter the required changes and click **Save**.
4. Deleting a custom field removes its values from inventory records. Make sure to export data first if you need it later.
5. If a default value is configured and manually updated for specific devices, changing the default value later will update only the fields that have not been manually edited. Fields with manually updated values will remain unchanged.