> 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-synchronizing-offline.md).

# Restore the connection to the store database

When the technical issue that interrupted the connection to the store database is resolved, close and restart POS to restore the app's connection to the store database. When POS restarts, the cashier or salesperson is prompted to synchronize data from the offline database to the store database. Once the synchronization is complete, POS returns to normal operation.

The synchronization process creates two blind closed batches in Store Manager: one for the batch that was open before the connection to the store database was lost, and one for the batch that was created to record sales transactions while POS was operating in offline mode. Generate the Z Report in Store Manager to close these batches.

{% hint style="info" %}
For Central-enabled stores, run the Sales Consistency Checker for that day to make sure there are no dropped transactions.
{% endhint %}

1. Click **Journal**.
2. Click **Update Batch Info**.
3. From the **Field** drop-down, select **Register Number**.
4. In the **Value** field, enter the register number.
5. Click **OK**.
6. Select a blind closed batch.
7. In the **Generate Report** section of the ribbon, click **Z** to generate the Z Report.
8. Click **Yes** to generate the Z Report and close the batch.
9. (Optional) Click **Yes** to print a receipt.


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