# Prerequisites
<a name="Athena-prereq"></a>

To use the managed policies for Amazon Managed Grafana for Athena, complete the following tasks before you configure the Athena data source:
+ Tag your Athena work groups with `GrafanaDataSource: true`. 
+ Create an S3 bucket with a name that starts with `grafana-athena-query-results-`. This policy provides permissions for writing query results into an S3 bucket with that naming convention.

The Amazon S3 permissions for accessing the underlying data source of an Athena query are not included in this managed policy. You must add the necessary permissions for the Amazon S3 buckets manually, on a case-by-case basis. For more information, see [Identity-based policy examples in Amazon Managed Grafana](https://docs.aws.amazon.com/grafana/latest/userguide/security_iam_id-based-policy-examples.html) in this guide.