Volunteer Data Grid / Sign-In
You can customize the data grid to include "Sign-In" specific columns. For more information on customizing the data grid see Customizing the Data Grid.
To know if a volunteer is signed in, you simply add the "Signed In" column to your Volunteer Data Grid. All volunteers currently signed in will have "Yes" in this column.
If you see a volunteer that has been signed-in for awhile and forgot to sign-out, you may have to manually sign-out the volunteer(s).