Open Item Management Issue in GL Master

Hello Experts,

Assets Balances uploaded thru AS91 (Legacy Assets) through Zee program with out noticing "Open Item Management" check box for APC, Acc Dep GL accounts. When I execute AFAB periodic deprecation says Open Item management not possible to post it.

But when I try to Edit the GL account for deactivate of Open Item Management but system says already balances available not possible.

Can any body en-counted this kind of issue, solved solution or work around etc. Here note that after reversing balance and became zero also not allowing to de-activate.

Thanks,

KBR.