IAM Authorization Failure

Question

Hi,
I'm getting the following error when trying to call a custom API operation:
![Enter image description here](/media/postImages/original/IMH56lBZLwTi-6RFzKnePghw)

1. What could be the possible cause of this error?
2. Possible recommendation to fix this?

Thank you!

Gunasekaran, Makendran · Accepted Answer

The error indicates an IAM permissions issue - the user 'mateojackson' lacks the required IAM permissions to perform the 'widget:GetWidget' action on 'my-example-widget' resource.

Solution:
1. Attach appropriate IAM policy to the user/role that includes:
   - Action: "widget:GetWidget"
   - Resource: ARN of "my-example-widget"

2. Verify the policy using IAM Policy Simulator to test permissions

Example Policy:
```json
{
    "Version": "2012-10-17",
    "Statement": [{
        "Effect": "Allow",
        "Action": "widget:GetWidget",
        "Resource": "arn:aws:widget:region:account:my-example-widget"
    }]
}
```

Source: 
AWS Documentation - [IAM Troubleshooting](https://docs.aws.amazon.com/IAM/latest/UserGuide/troubleshoot_access-denied.html)

IAM Authorization Failure

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