> For the complete documentation index, see [llms.txt](https://docs.e6data.com/query-engine/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.e6data.com/query-engine/guides/deployment/aws-serverless/troubleshooting.md).

# Troubleshooting

Resolve common IAM, cross-account, and catalog connection errors in a Serverless e6data deployment on AWS.

| Issue                         | Suggested action                                                                                                  |
| ----------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| Permission denied             | Verify the IAM role has `s3:GetObject` and `s3:ListBucket` on the correct bucket ARNs.                            |
| Glue access denied            | Ensure the role has Glue permissions (`glue:GetTable`, `glue:GetPartitions`, and so on) on the correct resources. |
| Role cannot be assumed        | Check the trust policy includes the correct e6data account ID and role name.                                      |
| Cross-account access fails    | Verify that both the trust policy and the S3 bucket policies allow cross-account access.                          |
| Catalog test connection fails | Ensure the IAM role can access both the Glue catalog and the underlying S3 data.                                  |
| Federated credential issues   | Make sure the trust policy `Action` includes both `sts:AssumeRole` and `sts:TagSession`.                          |
| Still blocked                 | Contact e6data support with the IAM role ARN, error logs, and bucket information.                                 |

## See also

* [Configure AWS access](/query-engine/guides/deployment/aws-serverless/configure-aws-access.md) - the IAM role and policies these errors refer to.
* [FAQs](/query-engine/guides/deployment/aws-serverless/faqs.md) - access and revocation questions.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.e6data.com/query-engine/guides/deployment/aws-serverless/troubleshooting.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.