> For the complete documentation index, see [llms.txt](https://docs.tonic.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tonic.ai/app/readme-1/tonic-license-plans.md).
# Structural license plans
The Tonic Structural license plans are designed to accommodate organizations that are of different sizes and that have more or less complex data architectures.
## Professional license
The Professional license is designed for larger organizations that have more complex data architectures. The organization might have a larger team that supports multiple databases.
### Users
The Professional license allows up to 10 users. You can purchase access for unlimited users as an add-on.
You can use [single sign-on (SSO)](/app/admin/tonic-user-access/single-sign-on.md) to manage your Structural users.
### Data connectors
With a Professional license, you can create workspaces for up to two types of data connectors. You can purchase one additional data connector type as an add-on.
Those data connectors can be of any type except for [Oracle](/app/setting-up-your-database/oracle.md) and [Db2 for LUW](/app/setting-up-your-database/db2-luw.md).
### Structural features
A Professional license provides access to most Structural features.
It does NOT provide access to the following features, which require an Enterprise license:
* [Custom permission sets](/app/admin/tonic-user-access/permissions/permission-sets-about.md)
* [Global permission set assignment](/app/admin/tonic-user-access/permissions/global-permissions/global-permission-set-access.md)
* [Privacy Report](/app/generation/privacy-report.md)
* [Workspace inheritance](/app/workspace/managing-workspaces/workspaces-inheritance.md)
* [Granting Viewer and Auditor access to workspaces](/app/workspace/workspace-access-management/workspace-sharing.md)
* [Secrets managers for database connections](/app/workspace/workspace-configuration-settings/secrets-manager.md)
* [Migration scripts for upsert](/app/workspace/workspace-configuration-settings/workspace-config-upsert.md#workspace-config-upsert-migration-server)
### Structural API
With a Professional license, you only have access to the basic version of the Structural API.
You cannot use the basic Structural API to perform the following API tasks, which require the advanced API:
* [Assigning table modes to tables](/app/api/quick-start-guide/tonic-api-table-modes.md)
* [Assigning generators to columns](/app/api/quick-start-guide/tonic-api-generator-assignment.md)
## Enterprise license
The Enterprise license is ideal for very large organizations that have multiple teams that support very large and complex data structures, and that might have more requirements related to scale and compliance.
It provides full access to all Structural features.
### Users
An Enterprise instance does not limit the number of users.
### Data connectors
You can use any number of any of the available data connectors.
The Enterprise license provides exclusive access to the [Oracle](/app/setting-up-your-database/oracle.md) and [Db2 for LUW](/app/setting-up-your-database/db2-luw.md) data connectors.
### Structural features
The following features are exclusive to the Enterprise license:
* [Custom permission sets](/app/admin/tonic-user-access/permissions/permission-sets-about.md)
* [Global permission set assignment](/app/admin/tonic-user-access/permissions/global-permissions/global-permission-set-access.md)
* [Privacy Report](/app/generation/privacy-report.md)
* [Workspace inheritance](/app/workspace/managing-workspaces/workspaces-inheritance.md)
* [Granting Viewer and Auditor access to workspaces](/app/workspace/workspace-access-management/workspace-sharing.md)
* [Secrets managers for database connections](/app/workspace/workspace-configuration-settings/secrets-manager.md)
* [Upsert migration service](/app/workspace/workspace-configuration-settings/workspace-config-upsert.md#workspace-config-upsert-migration-server)
### Structural API
The Enterprise license provides exclusive access to the advanced API.
The advanced Structural API provides access to all of the available API tasks, including the following tasks that are not available in the basic API:
* [Assigning table modes to tables](/app/api/quick-start-guide/tonic-api-table-modes.md)
* [Assigning generators to columns](/app/api/quick-start-guide/tonic-api-generator-assignment.md)
* [Managing generator presets](/app/api/quick-start-guide/api-generator-presets.md)
* [Managing custom sensitivity rules](/app/api/quick-start-guide/api-custom-sensitivity-rules.md)
## Feature comparison across Structural license plans
The following table compares the available features for the Structural license plans.
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