The revaluation key instructs the Asset Revaluation (Inflation) program how to revaluate each asset.

You maintain revaluation keys in Customizing for Financial Accounting, by choosing Asset Accounting ® Special Valuation ® Revaluation of Fixed Assets ® Revaluation for the Balance Sheet ® Inflation ® Revaluation Keys.

Once you have maintained the keys, you assign one to every asset master.

Whenever you create a new asset, you specify in the asset master data which revaluation key the asset is to be revaluated with.

When you run the Asset Revaluation (Inflation) program, it revaluates each asset according to the information in the revaluation key.