AS01/AS02: Depreciaiton area gray....

Dear experts,

I hope you all can help me out on this. It is something which I must have done, but have no clue now to resolve this.

While creating asset master data or changing it, in the depreciation areas tab, I am getting two depreciation areas as gray i.e. I can't change any values in there.

Does anyone know what may be the reason? I appreciate your time and help on this.

Regards,

~Vishal.