> 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/reference/limits-and-quotas/workspace-limits.md).

# Workspace limits

Naming rules and limits for workspaces, service accounts, and tokens in e6data.

Reference limits for workspaces and the identities scoped to them.

## Workspace naming

| Rule                   | Value                                   |
| ---------------------- | --------------------------------------- |
| Length                 | 3–18 characters                         |
| Allowed characters     | Lowercase letters, numbers, and hyphens |
| First / last character | Must be a letter or number              |

There is no hard limit on the number of workspaces in an organization. Each workspace is independently billed for compute, and access control is per-workspace.

## Service accounts

| Rule                | Value                                                                    |
| ------------------- | ------------------------------------------------------------------------ |
| Name length         | 3–63 characters                                                          |
| Name characters     | Lowercase letters, digits, hyphens; not starting or ending with a hyphen |
| Name mutability     | Permanent (cannot be renamed)                                            |
| API key name length | 1–128 characters                                                         |
| Keys per account    | No hard limit                                                            |

## Tokens

| Rule       | Value                                                       |
| ---------- | ----------------------------------------------------------- |
| Expiry     | Entered in days; default 90, maximum 3650, or never expires |
| Visibility | The secret is shown once at creation                        |

## See also

* [Cluster limits](/query-engine/reference/limits-and-quotas/cluster-limits.md)
* [Workspaces](/query-engine/guides/workspaces.md)
* [Access tokens](/query-engine/guides/security/access-tokens.md)


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