When we are trying to define the depreciation types for the fixed assets, we find that for those depreciation types that use the Straight Line Period Control method, we cannot find the Individual Usage option as its depreciation period.
I have these below scenario:
From the SAP Business One Main Menu, choose Financials -> Fixed Assets -> Depreciation Types. The Depreciation Types - Setup window opens.
On the header, in the Method field, select the Straight Line Period Control option.
On the Calculation tab, the Depreciation Period field appears.