## Preflight checks for Sigma

URL: https://docs.atlan.com/apps/connectors/business-intelligence/sigma/references/preflight-checks-for-sigma

> First, the list of workbooks in the _Include Workbooks_ and _Exclude Workbooks_ fields is determined. Next, the [List Workbooks](https://help.sigmacomputing.com/hc/en-us/articles/4408555666323) REST API is used to fetch the actual list of workbooks for which the user credentials have view permission.

Before [running the Sigma crawler](https://docs.atlan.com/llms/connectors/sigma/crawl-sigma/llms.txt), you can run [preflight checks](https://docs.atlan.com/llms/catalog/connector-capabilities/what-are-preflight-checks/llms.txt) to perform the necessary technical validations. The following preflight checks will be completed:

## Workbook view permission

First, the list of workbooks in the _Include Workbooks_ and _Exclude Workbooks_ fields is determined. Next, the [List Workbooks](https://help.sigmacomputing.com/hc/en-us/articles/4408555666323) REST API is used to fetch the actual list of workbooks for which the user credentials have view permission.

✅ `Check successful` if all the workbooks from the first list are in the second one.

❌ `Check failed for $missingWorkbookId workbook`

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