Derived depreciation area don't appear in asset explorer

Hello,

I created a depreciation area 51 for investment grant.

i want to see the value of book depreciation area (01) minus the support (DP 51). i created for that a new depreciation area for reporting 61, that the the sum of DE01 and DP51.

I set iis with "no post" because it is only for reporting.

But I can not sea the deprecition area in the Asset explorer an d when I run a report onm asset, i can not choose DP 61 without having the message AA046 : " You are not authorized for depreciation area(s)". Despite the message, it is not an authorization problem but it seems a customizing problem.

Does anybody have an idea about what I made wrong ?

Thanks in advance for your help.

Céline