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# Transfer SIMs between Workspaces

> How to transfer SIMs between Workspaces in the emnify Portal

> **Note**
>
> The ability to transfer SIMs between Workspaces is available only to customers with [multiple Workspaces](/portal/workspaces).
> Find a full feature description and billing implications in the [**Transfer SIMs between Workspaces**](/portal/workspaces#transfer-sims-between-workspaces) section.

The Transfer SIMs feature allows you to efficiently move SIMs from one Workspace to another.
This feature also includes notifications and event tracking to ensure a seamless and transparent process.

Follow these steps to transfer SIMs:

In the [**SIM Inventory**](https://portal.emnify.com/sim-inventory), select the checkbox next to every SIM you want to transfer.

A new menu at the top of the page provides bulk operations.
Select **Transfer SIMs**.

Choose the target Workspace from the list, then select **Transfer**.

> **Info**
>
> During the transfer process, the SIM cards are detached from their current devices.

Once the transfer is completed, a notification displays in the source Workspace with an option to download a CSV file containing the transferred SIMs.

![](/_fern-files/emnify.docs.buildwithfern.com/97ea5a8295a0f9da96df6444f81fef8c7e9833e3db6b68995b300320470cf0a4/assets/gifs/emnify-portal/sim-inventory/transfer-sim.gif)

A widget also appears in **SIM Inventory** of the target Workspace to help you manage the newly migrated SIMs.
It shows the number of transferred SIMs and provides an option to create devices in bulk for the transferred SIMs.
Once the widget is either closed or the action is completed, it's marked as read.

![SIM Inventory with three migration widgets, each showing the source Workspace and an Assign to devices action](/_fern-img/48c42be576cd876412ea4083589bb639d793dff7d0c77787b492ec06b450a540.webp)

> **Note**
>
> Each SIM transfer triggers a new event in the Portal's events log.
> See the [SIM migration event type](/system-events/event-types/device-status-management#sim-migration) for more information.

## REST API

To migrate SIMs programmatically, use the [Migrate SIMs between Workspaces](/developers/api/sim/sim-migration-workspace) endpoint.

> **Warning**
>
> API-based SIM migration requires authentication with [user credentials](/developers/auth/user-credentials), as application tokens are scoped to a single Workspace.