# Troubleshooting Amazon Certificate Manager identity and access
<a name="security_iam_troubleshoot"></a>

Use the following information to help you diagnose and fix common issues that you might encounter when working with ACM and IAM.

**Topics**
+ [I am not authorized to perform an action in ACM](#security_iam_troubleshoot-no-permissions)
+ [I am not authorized to request a certificate in ACM](#security_iam_troubleshoot-request-permissions)
+ [I am not authorized to perform iam:PassRole](#security_iam_troubleshoot-passrole)
+ [I want to allow people outside of my Amazon Web Services account to access my ACM resources](#security_iam_troubleshoot-cross-account-access)

## I am not authorized to perform an action in ACM
<a name="security_iam_troubleshoot-no-permissions"></a>

If you receive an error that you're not authorized to perform an action, your policies must be updated to allow you to perform the action.

The following example error occurs when the `mateojackson` IAM user tries to use the console to view details about a fictional `my-example-widget` resource but doesn't have the fictional `acm:GetWidget` permissions.

```
User: arn:aws-cn:iam::123456789012:user/mateojackson is not authorized to perform: acm:GetWidget on resource: my-example-widget
```

In this case, the policy for the `mateojackson` user must be updated to allow access to the `my-example-widget` resource by using the `acm:GetWidget` action.

If you need help, contact your Amazon administrator. Your administrator is the person who provided you with your sign-in credentials.

## I am not authorized to request a certificate in ACM
<a name="security_iam_troubleshoot-request-permissions"></a>

If you receive this error, your ACM or PKI administrator has set rules that prevent you from requesting the certificate in its current state.

The following example error occurs when an IAM user tries to use the console to request a certificate using options that are configured with a `DENY` by the organization administrator.

```
User: arn:aws:sts::account::ID: is not authorized to perform: acm:RequestCertificate
on resource: arn:aws:acm:region:account:certificate/*
with an explicit deny in a service control policy
```

In this case the request should be made again in a way that is inline with the policies set by your administrator. Or the policy needs to be updated to allow requesting the certificate.

## I am not authorized to perform iam:PassRole
<a name="security_iam_troubleshoot-passrole"></a>

If you receive an error that you're not authorized to perform the `iam:PassRole` action, your policies must be updated to allow you to pass a role to ACM.

Some Amazon Web Services services allow you to pass an existing role to that service instead of creating a new service role or service-linked role. To do this, you must have permissions to pass the role to the service.

The following example error occurs when an IAM user named `marymajor` tries to use the console to perform an action in ACM. However, the action requires the service to have permissions that are granted by a service role. Mary does not have permissions to pass the role to the service.

```
User: arn:aws-cn:iam::123456789012:user/marymajor is not authorized to perform: iam:PassRole
```

In this case, Mary's policies must be updated to allow her to perform the `iam:PassRole` action.

If you need help, contact your Amazon administrator. Your administrator is the person who provided you with your sign-in credentials.

## I want to allow people outside of my Amazon Web Services account to access my ACM resources
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You can create a role that users in other accounts or people outside of your organization can use to access your resources. You can specify who is trusted to assume the role. For services that support resource-based policies or access control lists (ACLs), you can use those policies to grant people access to your resources.

To learn more, consult the following:
+ To learn whether ACM supports these features, see [How Amazon Certificate Manager works with IAM](security_iam_service-with-iam.md).
+ To learn how to provide access to your resources across Amazon Web Services accounts that you own, see [Providing access to an IAM user in another Amazon Web Services account that you own](https://docs.amazonaws.cn/IAM/latest/UserGuide/id_roles_common-scenarios_aws-accounts.html) in the *IAM User Guide*.
+ To learn how to provide access to your resources to third-party Amazon Web Services accounts, see [Providing access to Amazon Web Services accounts owned by third parties](https://docs.amazonaws.cn/IAM/latest/UserGuide/id_roles_common-scenarios_third-party.html) in the *IAM User Guide*.
+ To learn how to provide access through identity federation, see [Providing access to externally authenticated users (identity federation)](https://docs.amazonaws.cn/IAM/latest/UserGuide/id_roles_common-scenarios_federated-users.html) in the *IAM User Guide*.
+ To learn the difference between using roles and resource-based policies for cross-account access, see [Cross account resource access in IAM](https://docs.amazonaws.cn/IAM/latest/UserGuide/access_policies-cross-account-resource-access.html) in the *IAM User Guide*.