Diagnosis
You are using the the acquisition costs or replacement value as thebase value in your calculation key. You should provide for anappropriate end treatment for these base values after the end of theplanned useful life, so that you can depreciate below zero, forexample. When you use these base values, it is possible for an amountto remain after the expiration of the planned useful life, due torounding or post-capitalization. Such an amount is not depreciatedunless you specify an end treatment.

Procedure
Select 'Depreciate after planned life end' or enter a changeover methodand a changeover key.