---
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


---

# Loading mechanisms for UI elements

# Loading mechanisms for input form UI elements {#ariaid-title1}

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

Use this table to see which loading mechanisms support specific UI elements in an input form.
For more information, refer to the following topics:

* For inputs, see [Input form screen attributes for inputs](https://servicenow-prod.fluidtopics.net/EKaX~e6Ccz9_7N5~4dKDWw "Different types of inputs are available for use in input form screens, and you can use different attributes to configure the inputs.").
* For input actions, see [Configure input form actions in an input form screen](https://servicenow-prod.fluidtopics.net/_HUwhK0zZ65JBB6VrSIWyw "Add a button next to input form fields to give users the ability to perform various input actions. These actions include adding a comment, adding one or more attachments, and navigating to other screens.").
* For descriptive elements, see [Configure descriptive elements for input form screens](https://servicenow-prod.fluidtopics.net/FFbWZUPNt_xVm3TNP9iyAQ "Add descriptive elements, such as an image, simple text, rich text, or a mobile card, before an input field within an input form screen. This additional on-screen information provides a context to your users, enabling them to better understand what is required as they enter data into an input form.").
{#loading-mechanisms-table__ul_ln3_t4b_p2c}  
{#loading-mechanisms-table__table_bdv_hvb_p2c__entry__5}

| UI element | Type | Autofill variable | Data source | Comment |
|-|-|-|-|-|
| Input | String | Yes | Yes | - |
| Input | Number | Yes | Yes | - |
| Input | Choice | Yes | Yes | * For autofill variables: Applies to choice inputs of single choice only. * For data sources: Applies to choice inputs of both single choice and multiple choices. {#loading-mechanisms-table__ul_m4k_bkr_bfc} |
| Input | Date/Time | Yes | Yes | Applies to both inputs data and date time. |
| Input | Boolean | Yes | Yes | - |
| Input | Reference | Yes | Yes | * For autofill variables: Applies to single reference inputs only. * For data sources: Applies to both single reference and list of references inputs. {#loading-mechanisms-table__ul_nsh_jkr_bfc} |
| Input | Attachment | - | Yes | Must be mapped to the sys_id of the record. |
| Input | Screen | - | Yes | - |
| Input | Bar code | - | Yes | - |
| Input | Ranking | - | Yes | - |
| Input | Custom map | - | - | - |
| Input | Signature | - | - | - |
| Input action | Comment | - | Yes | - |
| Input action | Attachments | - | Yes | Must be mapped to the sys_id of the record. |
| Input action | Navigation function | - | Yes | Relates to a function with a Record context. By default, the context of the navigation function is the input form's context. You can override it with any custom context. |
| Descriptive element | Image | - | Yes | Must be mapped to an image field type column. |
| Descriptive element | HTML (Rich text) | - | Yes | Must be mapped to an HTML field type column. |
| Descriptive element | Plain text | - | Yes | Must be mapped to a string or string (UTF-8) field type column. |
| Descriptive element | Card | - | Yes | For configuration of mobile cards, see [Mobile Card Builder](https://servicenow-prod.fluidtopics.net/YcLCTHmDZkUz4CbYmr2CLg "Use Mobile Card Builder to create or modify card templates using a graphical interface."). |
[Table 1. Specific UI elements and their supported loading mechanism]

{#loading-mechanisms-table__table_bdv_hvb_p2c}