How to deactivate the depreciation key already used.

Hi Experties,

Here the client wants to deactivate the depreciation key so that no one can use the same later. They have created the new depreciation key in place of old one. I looked at T_code AFAMA, there is an candle icon for activation but nothing for deactivation. Can any body tell me how to block / deactivate the old depreciation key. I do not want to delete them just to avoid any kind of inconsistencies as they have already been used many times in the past in depreciation calculation.

Your early reply will be sincerely appreciated.

Rgds,

BABA