> ## Documentation Index
> Fetch the complete documentation index at: https://syteca.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Cross-Tenant Access

> How a Syteca tenant admin grants the technician (admin of the built-in default tenant) full access to their tenant account — opt-in and revocable.

By default, **only users of a tenant have access to that tenant's data** — the technician (the admin user of the built-in default tenant) cannot see inside a non-default tenant. This is the core isolation guarantee of Multi-Tenant mode.

When the tenant admin needs hands-on help — troubleshooting, support, migration assistance — they can **opt in** to grant the technician full access to their tenant account. Once granted, the technician can [switch to that tenant](/docs/administration/multi-tenant/manage-tenants#switch-to-another-tenant-account) and perform the same actions as the tenant admin. The grant can be turned off again at any time.

<Info>
  **Not available in SaaS.** Multi-Tenant mode is only supported on on-premises and self-hosted Syteca deployments.
</Info>

<Note>
  This action is performed by the **tenant admin**, not by the technician. The technician cannot grant themselves access — the opt-in must come from inside the tenant.
</Note>

## Grant the technician access to your tenant

<Steps>
  <Step title="Sign in as the tenant admin">
    Sign in to the Management Tool as the tenant admin of the tenant you want to grant access to.
  </Step>

  <Step title="Open Configuration">
    Click the **Configuration** button at the top of the Management Tool.
  </Step>

  <Step title="Enable the grant">
    On the **System Settings** tab, in the **Account Access** section at the top, select **Grant a technician full access to my tenant account**.
  </Step>

  <Step title="Confirm">
    In the **Warning** pop-up, click **Yes** to confirm.
  </Step>

  <Step title="Save">
    Click **Save** in the bottom right of the page.
  </Step>
</Steps>

The technician can now [switch to your tenant](/docs/administration/multi-tenant/manage-tenants#switch-to-another-tenant-account) from the Tenants page and perform any action available to you as the tenant admin.

<Frame caption="The Account Access section on the System Settings tab.">
  <img src="https://mintcdn.com/syteca/FKrkO8bEqEQ6WSgs/images/administration/multi-tenant/grant-technician-access.png?fit=max&auto=format&n=FKrkO8bEqEQ6WSgs&q=85&s=58a739679df3c3a0266bdb1933c6ee27" alt="System Settings tab showing the Grant a technician full access to my tenant account checkbox" width="1500" height="691" data-path="images/administration/multi-tenant/grant-technician-access.png" />
</Frame>

## Revoke the grant

To revoke the technician's access at any time, return to the same setting and **clear** the **Grant a technician full access to my tenant account** checkbox, then click **Save**. The technician immediately loses the **Switch To** option for your tenant.

## Related

<CardGroup cols={2}>
  <Card title="Multi-Tenant overview" icon="users-round" href="/docs/administration/multi-tenant/overview">
    The conceptual overview, user types, and role comparison table.
  </Card>

  <Card title="Manage tenants" icon="list-tree" href="/docs/administration/multi-tenant/manage-tenants">
    Add, edit, delete, and switch to tenants from the Tenants page.
  </Card>
</CardGroup>