---
sourceDocument: Zurich Conversational Interfaces
sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/conversational-interfaces
Release :
- zurich
ft:locale :
- en-US
ft:publication_title :
- Zurich Conversational Interfaces
ft:clusterId :
- convint
bundleId :
- convint
workflow :
- Platform
---
# ServiceNow Otto for Virtual Agent system properties
# ServiceNow Otto for Virtual Agent system properties {#ariaid-title1}
* Release version: Zurich
*
* Updated July 31, 2025
*
*  3 minutes to read
Use system properties to customize your assistant. Some properties are available on a system properties form, but some lesser-used properties are available only from the System Property \[sys_properties\] table. Legacy refers to
the standard or enhanced chat experience. Premium refers to the premium chat experience.
{#nava-sys-props__table_ycq_yzy_fgc__entry__3}
| Property | Description | Legacy or premium |
|-|-|-|
| com.glide.cs.doc_qna.va_attachment.max_attachments | Set the maximum number of attachments that can be attached at one time for the assistant. Default value = 3. | Legacy |
| com.glide.cs.nass.synthesized_response.disabled_popover.hide | Hide the popover for inactive catalog items for ServiceNow Otto for Virtual Agent and ServiceNow Otto panel's enhanced chat. The default value is false. | Legacy |
| com.glide.interactive_view.enabled | Open an interactive side panel view next to the chat window. The default value is true to activate AI Experience on your instance. | Legacy |
| sn_ai_websearch.perplexity_model_name | Specify the Perplexity model to use for web search. The default value is sonar. | Legacy |
| sn_ais_assist.kgnlq_schema_name | Control the information available to ServiceNow Otto for Virtual Agent through Knowledge Graph. The default value is sn_kg.now_user_graph_nlq. | Legacy |
| sn_nowassist_va.assistant_personalization | Show or hide chat personalization when branding an assistant. * Choices: AGENT_PERSONA, TONE_RESPONSE_LEN, TONE_RESPONSE_LEN_PERSONA * Type: Choice list * Value: TONE_RESPONSE_LEN_PERSONA (Personalization is shown by default.) {#nava-sys-props__ul_jxq_r4x_ljc} The AGENT_PERSONA value hides personalization. The TONE_RESPONSE_LEN value shows tone and response length but hides the persona setting. | Legacy and premium |
| sn_nowassist_va.display_default_catalog_image | Show or don't show the default cart image if a catalog item doesn't have an image set in its record. Value = true shows the default cart image. This is the default value. Value = false removes the default cart image. Note: A catalog item that is associated with an image continues to be displayed irrespective of the system property. | Legacy |
| sn_nowassist_va.enable_nass_show_all_option | Displays the Show all options link in enhanced chat and enhanced chat's full-page experience. The default value is false. | Legacy and premium |
| sn_nowassist_va.enable_suggested_queries | Enable suggested search queries for enhanced chat to appear in the chat window. Any search query performed in the portal's search bar appears as a part of the greeting topic for subsequent new conversations. The default value is false. | Legacy |
| sn_nowassist_va.enhanced_chat_pin_enabled.\ | Create a system property to enable pinning a chat window on a portal. In the system property, \ is the URL suffix for the portal application. For example, the system property for enabling a chat window in Employee Center would be sn_nowassist_va.enhanced_chat_pin_enabled.esc. By default, pinning a chat window is enabled for Service Portal. For all other portals, create the system property. For a list of URL suffixes, navigate to AllService PortalPortals. | Legacy and premium |
| sn_nowassist_va.max_suggested_queries | Determine the maximum number of suggested search queries to display within the greeting topic for enhanced chat window conversations. The default value is 6. | Legacy |
| sn_nowassist_va.show_view_more_for_synthesized | Show the Need more help button in a standard chat conversation. The Value field is empty by default so the button doesn't appear. To show the Need more help button, enter regular, clarification, or regular,clarification. * regular: The Need more help button appears only for synthesized responses. * clarification: The Need more help button appears only for clarification responses. Clarification responses typically occur when an end user's response is too vague and clarification is needed for a more targeted response. * regular,clarification: The Need more help button appears for both synthesized responses and clarification responses. {#nava-sys-props__ul_cqb_xjw_nfc} | Legacy (standard chat only) |
| sn_nowassist_va.synth_response_revisit_position | Change the order of the fallback and revisit options in a conversation. In the Value field, enter BEFORE_FALLBACK or AFTER_FALLBACK, and then select Update. | Legacy |
| sn_nowassist_va.synthesized_autostart_items | When synthesized response only returns a singular action, configure whether to automatically launch the action. By default, only Virtual Agent topics and agents automatically launch. You can configure this for whenever synthesized response returns a single conversational catalog item, a single Virtual Agent topic along with Knowledge Base information appears, a single conversational catalog item along with Knowledge Base information appears, or an agent response with sourced Knowledge Base information appears. * Type: string * Default value: topic, agent, agent_with_sources * Location: System Property \[sys_properties\] table {#nava-sys-props__ul_alq_cqx_jdc} | Legacy |
| sn_nowassist_va.use_planner2_response_as_fallback | Set to false (default value) to use the Virtual Agent fallback message when an answer cannot be found. Set to true to use an LLM-generated fallback message that is more specific in response whenever an answer cannot be found. | Legacy |
| sn_ais_assist.enable_pi_in_nba | Enable relevant history-based suggestions. False: Only LLM-based suggestions appear. This is the default value. True: History-based suggested actions can appear and occupy multiple suggested action slot options. | Legacy |
[ ]
{#nava-sys-props__table_ycq_yzy_fgc}
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