--- title: Define style rules from Change Schedule Definitions description: Define style rules from a change schedule definition to apply them to the change schedule that's related to the definition. locale: en-US canonical_url: https://www.servicenow.com/docs/r/it-service-management/change-management/def-stl-rules-from-chng-sch-def.html release: brazil product: Change Management classification: change-management topic_type: task last_updated: "2026-09-10" reading_time_minutes: 1 breadcrumb: [Style rules definition, Change schedules, Configure, Change Management, IT Service Management] --- # Define style rules from Change Schedule Definitions Define style rules from a change schedule definition to apply them to the change schedule that's related to the definition. ## Before you begin Role required: itil, sn\_chg\_soc.change\_soc\_admin, sn\_change\_role, sn\_change\_write, or admin ## Procedure 1. Navigate to **All** > **Change** > **Schedules** > **Change Schedule Definitions**. 2. Open the definition for which you want to define or edit a style rule. 3. In the Style Rules related list, select **New**. 4. On the form, fill in the fields.
Field Description
Name Name for the style rule.
Conditions Conditions that determine when the style rule applies. For example, show a red span when **Risk** is **High**.
Active Check box that, when selected, makes the style rule active.
Styling
Advanced Check box that, when selected, lets you write a script to set the label color, label weight, and event color.When this check box is cleared, the **Label color**, **Label weight**, and the **Event color** fields appear.
Label color Color of the text that is displayed for each record on the timeline that matches the style rule.
Label weight Thickness of the label, such as normal or bold.
Event color Color of the schedule span displayed for each record on the timeline that matches the style rule.
5. Select **Save**. **Note:** Style rules that you create from a change schedule definition take precedence over the style rules that exist in the base style rule table \[chg\_soc\_style\_rule\]. **Parent Topic:**[Style rules definition](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/it-service-management/change-management/style-rules-definition.md) **Related topics** [Define default style rules]() [Define style rules from the change schedules view]()