Asset Decapitalization which is from Capital Inventory

Hi, I have below issue in Fi-AA, please suggest the solution ASAP. There was asset capitalization in the last year from Capital Inventory through MB1A, these assets are shown in Asset register(AR02). Now client want to decapitalize these assets and want to keep them as inventory and dont want to show in asset register of last year. Conditions: Last year Asset register should not show these assets. Last year Asset FY closing is not done yet. Thanks