This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::Budgets::Budget HistoricalOptions
<a name="aws-properties-budgets-budget-historicaloptions"></a>

The parameters that define or describe the historical data that your auto-adjusting budget is based on.

## Syntax
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To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-budgets-budget-historicaloptions-syntax.json"></a>

```
{
  "[BudgetAdjustmentPeriod](#cfn-budgets-budget-historicaloptions-budgetadjustmentperiod)" : {{Integer}}
}
```

### YAML
<a name="aws-properties-budgets-budget-historicaloptions-syntax.yaml"></a>

```
  [BudgetAdjustmentPeriod](#cfn-budgets-budget-historicaloptions-budgetadjustmentperiod): {{Integer}}
```

## Properties
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`BudgetAdjustmentPeriod`  <a name="cfn-budgets-budget-historicaloptions-budgetadjustmentperiod"></a>
The number of budget periods included in the moving-average calculation that determines your auto-adjusted budget amount. The maximum value depends on the `TimeUnit` granularity of the budget:  
+ For the `DAILY` granularity, the maximum value is `60`.
+ For the `MONTHLY` granularity, the maximum value is `12`.
+ For the `QUARTERLY` granularity, the maximum value is `4`.
+ For the `ANNUALLY` granularity, the maximum value is `1`.
*Required*: Yes  
*Type*: Integer  
*Minimum*: `1`  
*Maximum*: `60`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)