How do I restrict assigning a journey when it's in progress?

Follow these steps:

1. On the home page, click the My Client Groups tab.
2. Click Show More under Quick Actions.
3. Click the Journey Templates quick action in the Journeys Setup area.
4. Click the journey name where you want to configure the restrict option.
5. Click the Advanced tab.
6. Under the Additional details section, enter the details.
7. Select Yes in the Restrict assigning journey if it’s in progress list of values (LoV).
8. Click Save.