---
sourceDocument: Australia Mobile Configuration and Navigation
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/mobile

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Mobile Configuration and Navigation

ft:clusterId :

    - mobile

bundleId :

    - mobile

workflow :

    - Development, Data and Analytics


---

# Add a field function to screen

# Add a field function to screen {#ariaid-title1}

* Release version: Australia
* 
* Updated March 12, 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Add field functions to the details screen in your record screens using Mobile App Builder.

## Before you begin

Role required: admin

Field functions are functions that users can access by tapping or swiping on a specific field on your form. Use this option for functions relating to data in a specific field. You can add functions to fields by creating a
function instance in any details screen that is embedded within your record screen.

## Procedure

1. Navigate to AllSystem MobileMobile App Builder.  
   The Mobile App Builder appears in a new browser tab and displays the application scope selection screen.
2. Search for the application scope you're working in and then select the name of the application scope.  
   The Mobile App Builder categories home screen displays.
3. Select the Screens category and then select the record screen.
4. Use the configuration tree on the left to find and select the details screen where you want to add a field function.
5. In the configuration panel, find the Field function instances section and click the New button.
6. In the New function instance control panel, fill in the fields as needed.  
   {#add-field-func-to-details__table_ypn_qv3_twb__entry__2}

   | Field | Description |
   |-|-|
   | Name | Name of the function instance. This name is for administration not visible to app users. |
   | Description | Description of the function instance. This description is for administration and not visible to app users. |
   | Display label | Label displayed in the app for the function. |
   | Order | Order in which the function is displayed in the app. |
   | Active | Whether the field function instance is active. Inactive function instances don't appear in the app. |
   | Disable offline | Whether the function instance is available |
   | Icon | Option icon used for your field function. To use an existing icon, click the Choose button, select an icon, and click Apply. To create an icon, click the New button. You're redirected to the New icon panel. For details on creating icons see [Mobile icons](https://servicenow-prod.fluidtopics.net/UHEcix0eGA6nbSLiEZhinw "Use icons to provide unique identifiers for navigation and actions in your mobile applications."). |
   | Field Name | Field that will use this field function. |
   | Function | Function to use on the field selected in the Field Name field. To use an existing function, click the Choose button, select a function, and click Apply. To create function, click the New button. You're redirected to the New function panel. For details on creating functions see [Mobile functions](https://servicenow-prod.fluidtopics.net/hxfkLR_viSp6YqBKbnmguw "Configure functions in Mobile App Builder to determine which actions users can perform in the mobile app."). |
   [Table 1. New function instance fields]

   {#add-field-func-to-details__table_ypn_qv3_twb}
7. Click Save in the upper right corner to save your function instance.

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