You maintain inflation indexes in Customizing for Financial Accounting (FI), by choosing Asset Accounting ® Special Valuation ® Revaluation of Fixed Assets ® Revaluation for the Balance Sheet ® Inflation Accounting ® Maintain Inflation Indexes.

Once you have done so, you assign an inflation index to each revaluation key.

When you come to run the Asset Revaluation (Inflation) program, it revaluates each asset using the inflation index that you have entered in the revaluation key.