问题：
Copy ZPH from 0PH
结果发现dep. area 15 - tax dep. area的dep. start date带不过来。
AS91的话，也没办法手工输入，一输入就被cancel
解决方法：
参考notes
Solution
Choose Customizing path "Financial Accounting -> Asset Accounting -> Depreciation -> Special Depreciation -> Determine Depreciation Areas" (Transaction OABS). Select the chart of depreciation copied from template 0PL or 0AR. Select the "Spec.depr." indicator for the affected depreciation areas (20 or 41 and 51) and save this setting. Deselect the indicator and save again. When you now display table T093A for the depreciation areas, field AFARFO should no longer be blank (a standard value would be "MSNA").