Cannot setup 'Require Receipt For' Option when setting up a Expense Report Template

Hi,

I am setting an Expense Report Template for Operating Unit A and when defining and Expense Item and tried to select the option 'Required Receipt For' as 'Required' the system doesn't allow me to setup this option.

However, exactly the same Template wiht this option enabled was defined in Operating Unit B.

What can be the cause for the issue? Is there a pending setup step that I need to perform before seeting up the Expense Items so I can enable that option?

Thanks,

cv