> For the complete documentation index, see [llms.txt](https://organizations.takomo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://organizations.takomo.io/organization-configuration/master-account.md).

# Master account

You need to specify the organization master account in the organization configuration. Takomo uses this information to ensure that organization management operations target the correct AWS organization. Use `masterAccountId` property to specify the master account.

#### Example

This is how you specify the master account id.

{% code title="organization/organization.yml" %}

```yaml
masterAccountId: "098765432100"
```

{% endcode %}