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GrahBook supports direct ESC/POS thermal printing via USB, Bluetooth, or WebSerial API. Go to Create Invoice page -> click printer icon -> select WebSerial printer or system thermal printer fallback. Ensure raw printing is enabled in your OS printer preferences.
Use F2 to jump directly to Customer Search, F4 to add a line item, Alt+C for Quick Customer Modal, Alt+I for Quick Inventory Modal, and Ctrl+Enter to save the invoice instantly.
Every bill created without full payment automatically adds to the customer's Udhaar balance. You can view running ledgers under Statements, send automatic WhatsApp reminders, or click 'Collect Udhaar Now' directly inside the Create Invoice page.
Yes! When selecting a customer with an active balance on the Create Invoice page, click 'Collect Udhaar Now'. It populates the payment field with the sum of today's bill + previous due.
Navigate to Reports -> GSTR Reports. Select your financial period (Monthly / Quarterly) to export verified GSTR-1 sales spreadsheets or copy GSTR-3B tax totals.
Visit Settings -> Subscription. Select Pro or Business plan and pay securely via PayU UPI, Credit Card, NetBanking, or QR. Your store capabilities update instantly.
On the Create Invoice page, click 'Scan Barcode via Mobile QR'. Scan the displayed QR code using your phone camera (no app install required) to turn your phone into a live 2D barcode scanner.