Issue with Asset Managemenet (parallel Currencies)

Question

This message is from my customer:
Capital investments are kept in Asset Managemenet (FI-AA),  balances are integrated part of FI-GL, shown on respective accounts.
Within AM, multiple valuation areas exists, as an asset underly different rules, depending of it's accounting (book) value and tax value etc.
Therefore, we have one area (01) representing the book value, - which is also the GL-balance. In addition, AM keep another area (10) representing the tax value.
Finally, we have a third area representing the difference between Tax and book, (called 'delta'), and these values are posted to GL as 'more/less  depreciation', enabling us to report both 'Accounting books' and 'Norwegian tax books'. This 'delta posting' is part of standard, monthly depreciation run.
We have a challenge in the case were we have USD as functional currency, in an entity registrated as Norwegian a/s.
Norwegian tax authorities require the tax values of the depreciation to be based on historical NOK-investments.  Both FI-GL and FI-AA support the parallel currency
accounting, but not when it comes to the handling of the 'delta-values'. In this case, the initial investments are kept in histotical NOK in AM, and in AM the NOK-investment is depreciatied in the tax area. However, when the delta-posting is done, this is done in USD only (based on area 01 and 10), and the parallel NOK-value of this transaction is translated based on exchange rate on transaction date, NOT the historical NOK-value.  The consequense of this is that the tax-books in NOK is incorrect, and there is a need to do manual adjustments, based on tiresome spreadsheet calculations.
Now: is this the only way SAP handles parallel currencies in AA/AM? No way to configure it to use historical exchange rates at all?
If this cannot be changed within SAP, has anyone else solved this kind of problem and might help me getting started?

Answer 1

Hello!
Does someone have answers to this:
From SAP Help:
The central procurement and processing of data for an asset takes place
in the logical database ADA in the FI-AA component. One of the functions
that is carried out in the database is currency translation. Currency
translation for a currency that is different from the company code
currency is carried out according to a translation method that you
define in FI-AA Customizing.
Where do i find this customising?
If the parameters of this standard translation method do not meet your
needs, you can define your own individual translation method using this
SAP enhancement.
Activities
Follow the procedure outlined below:
<b>
1.  Activate enhancement project AMGS_001.
2.  Modify function module EXIT_SAPLAMGS_001. Enter your own code in the
    included program ZXBADU03.
    When the enhancement project is active, the system uses the function
     module at the corresponding positions in the logical database.
  3.  Define a translation method in FI-AA Customizing (Information
      System) that uses translation date 3 (own translation).
</b>
  Parameters
  The following transfer parameters are available for function module
  EXIT_SAPLAMGS_001:
  o   I_AMOUNT (amount in local currency)
  o   I_ANLAV (master data for the asset)
  o   I_AFABER (depreciation area)
  o   I_BERDATUM (report date)
  o   I_UMVAR (translation method)
  The translated amount is expected as a return value in the field
  E_AMOUNT. This value is then transferred to the respective report.
This looks promissing But has anyone tried this exit, EXIT_SAPLAMGS_001?
Will it work for me?
-Helge-