This field contains the code of the specific rule to be applied upon asset depreciation for the schedule being processed. If field associations are set up for the Asset object, the Specific rule code can be automatically generated after entering the Accounting code or the Group code.
The rule to be applied is selected according to the depreciation mode selected and/or the depreciation schedule. For instance, on the Fiscal plan, depreciated based on the French decreasing method, a specific rule can consists in applying a tax aid (see the Depreciation methods description documentation).
After validation, it is possible to change the value only via action Change method.