Support Center

By prioritizing a Zero-Cloud dependency architecture, we ensure your financial data remains yours alone. This prevents remote breaches and guarantees 100% operational uptime, even without an internet connection.

Updating your database is handled through the Data Portability module. Go to Settings > Data. Simply "Export DB" your current JSON state to create a backup, update the application binaries, and "Import DB" to resume operations seamlessly.

Use the Role-Based Access Control (RBAC) in Settings > Users. You can assign roles like "Cashier", "Manager", or "Admin". Cashiers are restricted to the POS screen, while Managers and Admins can access inventory and financial ledgers.

Ensure your printer is connected to the same local network subnet as your host machine. Verify the Port binding in Settings > Printer Drivers match the device manufacturer's standard (usually Port 9100). If using USB, ensure the Windows/Linux drivers are correctly assigned.

Most modern barcode scanners operate in "Keyboard Wedge" mode. Khuble OS automatically detects rapid keystrokes as a barcode input on the POS screen. No special drivers are required. Just plug and play.

Most cash drawers connect directly to the receipt printer via an RJ11 or RJ12 cable. Ensure your thermal printer is configured correctly in Khuble OS; the software sends an automatic "kick" command to the printer upon checkout completion to trigger the drawer to open.

Navigate to Inventory > Tools > CSV Import. Download the blank template provided, map your columns (SKU, Product Name, Selling Price, Cost Price, Quantity), save as a .csv file, and upload it back into the system. The database will auto-sync.

Go to an item's Product Settings and set a "Minimum Threshold" value. When the available stock drops below this number during daily sales, the item will highlight red on the main dashboard and a notification will appear in the top-right alert center.

Our engine uses the standard formula: (Revenue - COGS) - OpEx = Net Profit. Any discrepancy in your "Net Operations Margin" is usually caused by unassigned Operational Expenses (OpEx) entries in your ledger or missing Cost of Goods Sold (COGS) variables in your inventory setup.

Navigate to "Sales History" via the sidebar, locate the specific receipt via search or barcode scan, and select "Refund / Void". This action will automatically return the items to your active inventory and deduct the final amount from your daily revenue ledger.

Yes. Under Settings > Financial > Taxes, you can create multiple tax groups with different percentage rates. You can assign these tax rules globally to all transactions, or link them specifically to individual product categories (e.g., higher tax on electronics, zero tax on raw produce).