---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Semantic Index Field form

# Semantic Index Field form {#ariaid-title1}

* Release version: Xanadu
* 
* Updated February 4, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

The Semantic Index Field form contains information about a field from an AI Search indexed source that you want to index for semantic vector search. Use this form when defining or modifying semantic index fields in a semantic index configuration.
To learn about defining and modifying semantic indexing settings for an indexed source, see [Configure semantic indexing settings for an indexed source](https://servicenow-prod.fluidtopics.net/MTroW~0rScnMYCEtTi4DlA "Specify the semantic indexing configuration settings you want to apply when AI Search indexes records from your indexed sources."). For details on semantic index configuration fields, see [Semantic Index Configuration form](https://servicenow-prod.fluidtopics.net/tjORkC_Of29mZSJ1fyDZcQ "The Semantic Index Configuration form contains information about semantic indexing settings for an AI Search indexed source. Use this form when defining or modifying semantic indexing settings for an indexed source.").  
Note:  
This form is only available when the AI Search Semantic Controller plugin (com.glide.ais.semantic_search) is active on your instance. To activate this plugin, your instance must have at least one [Now Assist application](https://www.servicenow.com/docs/access?context=platform-now-assist-landing&version=xanadu&pubname=xanadu-intelligent-experiences&ft:locale=en-US) installed.  
{#semantic-index-field-form__table_t1b_wjh_xcc__entry__2}

| Field | Description |
|-|-|
| Semantic Index Name | The name of the semantic index defined in the semantic index field's parent semantic index configuration. This field is automatically set. |
| Source | ServiceNow AI Platform® source table whose value you want to include in the semantic index. |
| Type | Type of object to index for semantic vector search. * Default value: Field * Supported values: * Field: Field from the ServiceNow AI Platform source table specified by your Source selection. * Attachment: Attachments from the ServiceNow AI Platform source table specified by your Source selection. {#semantic-index-field-form__ul_b4r_gmh_xcc} * Type: choice list {#semantic-index-field-form__ul_dy1_gmh_xcc} |
| Application | Application scope for the semantic index field record. This field is automatically set. |
| Order | Order of concatenation for this field's value relative to the values of other semantic index fields defined in the same semantic index configuration. Fields with lower values appear first in the concatenation. This field's value is only meaningful when Truncate or Full Text is selected from Chunking Strategy for the semantic index field's parent semantic index configuration. * Supported values: Any positive integer * Type: integer {#semantic-index-field-form__ul_jlg_xg3_xcc} |
| Field | Name of the source table field to include in the semantic index. This field's value will be handled according to the parent semantic index configuration's specified Chunking configuration for embedding settings. This field is automatically set to attachment_body when Attachment is selected from Type. |
[Table 1. Semantic Index Field form]

{#semantic-index-field-form__table_t1b_wjh_xcc}