How to Activate Time off Request of Field Service?

Hi all,

Thanks for reading my post.

I have created a record of Time off Request in the field service for the User. For this user, I marked the Time Off Approval Required = No, so that record will automatically get approved. In this way, Time off request will auto-approve and become Inactive.

Problem: In some cases, I need to update the Time off Request record, may be because User change its mind. So, I'm unable to find the functionality to make it Activated again.

Appreciate your feedback!

Thanks.