Hi Cecilia,
Generally speaking, you should always use the Wizard in Customizing when introducing these scenarios. This will help the correct customizing and is expected to work.
The Setup for revaluation areas should be defined in analog in a ledger scenario, meaning it should be customized as shown in following example:
Dep. Area Posting to G/L Ledger
Area 01 (e.g. HGB) 1 0L
Area 03 1 0L (Revaluation)
Area XX (e.g.) IAS 3 L1
Area YY 3 L1 (Revaluation)
Area 04 (XX-01) -Delta 6 L1
Area 05 (YY-03) -Delta 6 L1
I hope that this helps to clarify your question.
Best regards,
Brigitte