# Configuring multi-year and granular data


Using the management account, you can enable multi-year data and granular data in Cost Explorer. You do this in the Cost Management preferences in the console.

However, in order to enable multi-year and granular data, you first need to manage access to view and edit your Cost Management preferences. See [Controlling access using IAM](ce-iam-access.md).

**Note**  
Granular data visibility is only available for billing views that show chargeable data. When you use Billing Conductor as an account in a standard billing group or billing transfer billing group, you can't view granular data in Cost Explorer.

**To set up multi-year and granular data**

1. Open the Billing and Cost Management console at [https://console.aws.amazon.com/costmanagement/](https://console.aws.amazon.com/costmanagement/).

1. In the navigation pane, choose **Cost Management preferences**.

1. To get historical data for up to 38 months, select **Multi-year data at monthly granularity**.

1. To enable resource-level or hourly granular data, consider the following options:
**Note**  
The hourly data as well as daily resource-level data is available for the past 14 days.
   + Hourly granularity
     + Select **Cost and usage data for all AWS services at hourly granularity** to get hourly data for all AWS services without resource-level data.
     + Select **EC2-Instances (Elastic Compute Cloud) resource-level data** to track EC2 cost and usage at instance level at hourly granularity.
   + Daily granularity
     + Select **Resource-level data at daily granularity** to get resource-level data for individual or all AWS services.
     + Choose services from the **AWS services at daily granularity** dropdown list that you want to enable resource-level data for.
**Note**  
The dropdown list contains only those services that were used in your organization in the last six months. They are ranked starting with the costliest.

1. Choose **Save preferences**.

**Note**  
It can take up to 48 hours for changes to your data settings to reflect in Cost Explorer. Also, after saving your preferences, you won’t be able to make any additional changes for 48 hours.  
If the estimated data volume for your preferences is above the Cost Explorer limit, you'll receive an error stating that you have reached the data threshold limit and you won’t be able to save your preferences. See "Understanding Cost Explorer data threshold limits".

# Controlling access using IAM


You can use AWS Identity and Access Management (IAM) to manage access to your Cost Management preferences for individual users. You can then grant or revoke access on an individual level for each IAM role or user. You’ll need to add the following actions in order to be able to view and edit preferences: `ce:GetPreferences`, `ce:UpdatePreferences`, `ce:GetDimensionValues`, and `ce:GetApproximateUsageRecords`.

The following is a sample IAM policy with the relevant actions that would provide you with access to view and edit your Cost Management preferences in order to enable multi-year and granular data:

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
                "ce:GetPreferences",
                "ce:UpdatePreferences",
                "ce:GetDimensionValues",
                "ce:GetApproximateUsageRecords"
            ],
            "Resource": "*"
        }
    ]
}
```

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