Return check box of Item Category

Hello Experts,

Could you please let me know would there by any impact if we change the Item Category 'return' checkbox ticked?

We have an Item Category for which return check box is unticked(VOV7 setting) till now. It was not being used for return scenarios so far.

Now there was a new requirement implemented where this Item Category is also getting determined for return orders for few scenarios.

But since the return check-box is unticked the Net Value in Return Order where getting negative values.

Hence I ticked this check-box in test environment and now the Net value is positive. But before I implement this change in production environment I would like to know if there is any other functionality that the 'return' option does. Is there any impact?