lookBackAvailablePeriods

The integer that describes how many budget periods in your BudgetAdjustmentPeriod are included in the calculation of your current BudgetLimit. 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.

For example, if you set BudgetAdjustmentPeriod as 4 quarters, but your account had no cost data in the first quarter, then only the last three quarters are included in the calculation. In this scenario, LookBackAvailablePeriods returns 3.

You can’t set your own LookBackAvailablePeriods. The value is automatically calculated from the BudgetAdjustmentPeriod and your historical cost data.