I have created a new Depreciation area following the standard customizing steps and then executed AFBN and AFAR. It has been created as Real dep area that does not post to G/L.
All customizing settings are correct following the bussines requirement. Customizing tcodes/tables have been maintained correctly. OABC, OADB, OABD etc.
Now, the problems that I have faced so far are:
1. AFBN was copying the depreciation keys from Dep Area 01 not from OAYZ. I managed to overcome this issue by copying the RAFABNEW program to a Z one and deactivating a couple of lines. Actually I followed the suggestion from another post here.
2. I could not delete and replicate AFBN in D11. Again, I have found a function module that I picked up from a similar post here. It deletes everything and I can repeat AFBN.
Also minor problems here and there.
The main problem that I face however is the system error message:
SYST: You cannot change the depreciation periods
Message no. AA662
The source of the problem seems to be the fact that the existing Dep key in Dep area 01 calculates depreciation to date. T090NA-XDAILY is flagged. The same field is not flagged for the Dep Key that I use for the new Dep Area.
This somehow results in setting 365 as the value for T095B-PERFY for the new dep area as well. In my view it should not.
I have tried running AFBN both ways. Meaning option "Leave values Initial" flagged and not flagged and I am always ending up getting the error message in AS02 for the least.
There exist a number of notes addressing this error and a detailed wiki as well:
Error message AA662 You cannot change the depreciation periods - ERP Financials - SCN Wiki
However, none of these seems to be helpfull. Any inputs ideas are welcome!