We are using AS91 create data conversion Asset Master Data
Asset Cost is 1200, Ord.dep.start date 2012/12/01
Last year Accm.ord.deprec. is 1000
Current Year Deprec. is 8000
This asset revaluation in 2013/08/30 -2000
When we saved this asset, I don't known why the SAP reversed the revaluation in next period
How can I let the revaluation +2000 in period 9 does not appear
Thanks for your help in advance.