OF12 in Former budgeting

Hi,

We have configured FM Budget profile in OF12. Our setting for Time frame is as per below:

Past - 4

Future - 4

We need to cancel a 2008 PO. The system displays budget error. When we are trying to supplement the budget for the year of 2008, the system gives an error message , Enter year between 2009 - 2017 ( as per setting in OF12).

My question is, can we change the Time Frame setting temporarily to allow budget supplement & PO cancellation and set back the setting to the original?

Is there any implication in doing so?

Kindly advise.

Thank you.