You will need line numbers, these should start with 0 for the first depreciation area, then 1 for the next. This should be worked out using the data from SQL, not from what you see in the interface
This is mine that works;
ParentKey | LineNum | FiscalYear | DepreciationArea | DepreciationStartDate | UsefulLife | DepreciationType |
ItemCode | LineNum | PeriodCat | DprArea | DprStart | UsefulLife | DprType |
100009 | 0 | 16/01 | 200 | 120 | SL -T | |
100009 | 1 | 16/01 | 400 | 0 | LVA | |
100009 | 2 | 16/01 | Derived Area | 60 | SL020A | |
100009 | 3 | 16/01 | Main Area | 60 | SL -A |