lookbackAvailablePeriods

(Optional) - The integer that describes how many budget periods in your BudgetAdjustmentPeriod are included in the calculation of your current budget limit. If the first budget period in your BudgetAdjustmentPeriod has no cost data, then that budget period isn’t included in the average that determines your budget limit. You can’t set your own LookBackAvailablePeriods. The value is automatically calculated from the budget_adjustment_period and your historical cost data.