> For the complete documentation index, see [llms.txt](https://docs.rmhpos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rmhpos.com/store-manager/configure-pos-and-store-manager/offline-database/administrator-configuring-offline-db.md).

# Configure the offline database

1. (Recommended) Install Microsoft SQL Server Express on the same computer as POS.
2. Attach the empty offline database **rmhdb.bck**. The offline database is usually available under **C:\Program Files (x86)\Retail Hero\RMH Store Manager\DBFiles**.
3. Start **Store Administrator** on the computer where POS is installed. The shortcut should be available on the desktop.
4. Click **Configuration**.
5. Click the **Offline** tab.
6. In the **Server Name** field, type the host name of the computer where you installed SQL Server Express, a backwards slash, and the name of the SQL Server instance.

{% hint style="info" %}
If you installed SQL Server Express on the same computer as POS, you can use a period, (local), or localhost for the host name. The SQL Server instance cannot be the same as the SQL Server instance for the store database.
{% endhint %}

7. In the **Database** field, type the name of the empty offline database.

<div align="left"><img src="/files/WJBgBImpB4jNHzs4pSLs" alt=""></div>

8. Select **Use SQL Server Authentication**.
9. Enter the **User name** and **Password**.
10. Click **Test Database Connection**. You should see the message **Database successfully connected**.
11. Click **Save And Close**.
12. Open **POS**.
13. Print the **Z Report** to close the batch at the register. The Z Report synchronizes data from the store database to the offline database, and vice versa.


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