---
sourceDocument: Brazil Enable AI
sourceDocumentLink: https://www.servicenow.com/docs/r/intelligent-experiences

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    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Enable AI

ft:clusterId :

    - platai

bundleId :

    - platai

workflow :

    - Platform


---

# Set look back date range

# Set look back date range for unmanaged AI systems {#ariaid-title1}

Release version: Brazil  
Updated November 5, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Change how many days of missing value data AI Control Tower fills in when you mark an unmanaged AI system as managed again.

## Before you begin

Role required: sn_ai_governance.ai_steward

## About this task

While an AI system is unmanaged, its value data doesn't appear on the value dashboard. When you mark the AI system as managed again, the AI Control Tower fills in the data for the period it was unmanaged. Thus ensuring there
are no gaps in the dashboard numbers.

By default, AI Control Tower fills in up to 30 days of value data. If an AI system was unmanaged for longer than 30 days, increase the date range so the dashboard shows the full period. For example, if an AI system was
unmanaged for 6 weeks, set the date range to 45 days.

This setting applies to all AI systems that you mark as managed again. It also covers AI systems that were set to unmanaged automatically when you upgraded with a ServiceNow SKU.

## Procedure

1. Navigate to AllAI Control TowerHome.
2. Navigate to SettingsRules and TemplatesTemplatesValue controls.
3. Select look_back_data_value_calc.
4. In the Value field, enter the number of days of value data to fill in.  
   AI Control Tower supports 30, 45, and 60 days.
5. Select Update.
{#mv-set-date-range-for-historical-job__steps_w3h_bb3_5kc}

## Result

The next time AI Control Tower fills in value data for an AI system you have marked as managed, it uses the date range you entered.
**Related concepts**   

* [Value tracking for managed and unmanaged AI systems](https://www.servicenow.com/docs/MuKHRyQufu9bKhejg5eWnw "The AI Control Tower value dashboard shows value and usage only for AI systems that were managed during the reporting period. Value realized while an AI system was managed stays on the dashboard, even after the AI system becomes unmanaged.")

*[\>]: and then