@Kohei Tominaga1 According to the support article from ServiceNow.
The changed configuration will not be picked by existing LE cases in the following situations:
- Activity sets which are already triggered
- Activities which are already generated
- Activities which are already completed
Only activity sets, activities, or LE cases that have not yet triggered will use the new configurations.
Please refer to the following URLs to get more information.
Source: https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1117350
https://docs.servicenow.com/en-US/bundle/sandiego-employee-service-management/page/product/human-res...
Hope this helps.
