AWS Identity and Access Management
API Reference (API Version 2010-05-08)
AWS services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with AWS services in China.


Generates a report that includes details about when an IAM resource (user, group, role, or policy) was last used in an attempt to access AWS services. Recent activity usually appears within four hours. IAM reports activity for the last 365 days, or less if your Region began supporting this feature within the last year. For more information, see Regions Where Data Is Tracked.


The service last accessed data includes all attempts to access an AWS API, not just the successful ones. This includes all attempts that were made using the AWS Management Console, the AWS API through any of the SDKs, or any of the command line tools. An unexpected entry in the service last accessed data does not mean that your account has been compromised, because the request might have been denied. Refer to your CloudTrail logs as the authoritative source for information about all API calls and whether they were successful or denied access. For more information, see Logging IAM Events with CloudTrail in the IAM User Guide.

The GenerateServiceLastAccessedDetails operation returns a JobId. Use this parameter in the following operations to retrieve the following details from your report:

  • GetServiceLastAccessedDetails – Use this operation for users, groups, roles, or policies to list every AWS service that the resource could access using permissions policies. For each service, the response includes information about the most recent access attempt.

  • GetServiceLastAccessedDetailsWithEntities – Use this operation for groups and policies to list information about the associated entities (users or roles) that attempted to access a specific AWS service.

To check the status of the GenerateServiceLastAccessedDetails request, use the JobId parameter in the same operations and test the JobStatus response parameter.

For additional information about the permissions policies that allow an identity (user, group, or role) to access specific services, use the ListPoliciesGrantingServiceAccess operation.


Service last accessed data does not use other policy types when determining whether a resource could access a service. These other policy types include resource-based policies, access control lists, AWS Organizations policies, IAM permissions boundaries, and AWS STS assume role policies. It only applies permissions policy logic. For more about the evaluation of policy types, see Evaluating Policies in the IAM User Guide.

For more information about service last accessed data, see Reducing Policy Scope by Viewing User Activity in the IAM User Guide.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.


The ARN of the IAM resource (user, group, role, or managed policy) used to generate information about when the resource was last used in an attempt to access an AWS service.

Type: String

Length Constraints: Minimum length of 20. Maximum length of 2048.

Required: Yes

Response Elements

The following element is returned by the service.


The job ID that you can use in the GetServiceLastAccessedDetails or GetServiceLastAccessedDetailsWithEntities operations.

Type: String

Length Constraints: Fixed length of 36.


For information about the errors that are common to all actions, see Common Errors.


The request was rejected because an invalid or out-of-range value was supplied for an input parameter.

HTTP Status Code: 400


The request was rejected because it referenced a resource entity that does not exist. The error message describes the resource.

HTTP Status Code: 404


Sample Request &Arn=arn:aws:iam::123456789012:policy/ExamplePolicy1 &Version=2010-05-08 &AUTHPARAMS

Sample Response


See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: