Configuration
After installation and licensing, configure the POS application for your business needs.
Business Settings
Access business settings from Settings → Business:
- Business Name: Your store or company name
- Currency: Select from supported currencies (USD, EUR, GBP, etc.)
- Tax Name: Display name for tax (e.g., "Sales Tax", "VAT", "GST")
- Tax Rate: Default tax percentage (0-100%)
- Receipt Printer: Printer port or IP address (optional)
Printer Configuration
USB Thermal Printers (Windows)
Most USB thermal printers appear as COM ports. Common ports:
- COM3, COM4, COM5, COM6, COM7, COM8, COM9
To find your printer port: 1. Open Device Manager 2. Expand "Ports (COM & LPT)" 3. Look for your printer (e.g., "USB Serial Port") 4. Note the COM number
Network Printers
Enter the printer's IP address (e.g., 192.168.1.100)
Test Printer
Use the Test Print button in Settings to verify your printer is working correctly.
Cloud Sync (Optional)
Enable cloud sync to backup your data to Supabase:
1. Navigate to Settings → Sync 2. Click "Connect to Supabase" 3. Enter your Supabase URL and anon key 4. Authorize via OAuth or enter credentials 5. Configure your store name
You need a Supabase project to use cloud sync. Create one at supabase.com.
Security Settings
- Grace Period: Days the app works offline without license validation (default: 30)
- User Roles: Configure owner, manager, and cashier permissions
Data Backup
Manual backup: 1. Close the application 2. Copy the database file:
- Windows:
%APPDATA%\com.posapp.desktop\posapp.db - Mac:
~/Library/Application Support/com.posapp.desktop/posapp.db
3. Store the backup in a safe location
Reset
To reset the application to factory settings:
1. Close the application 2. Delete the database file 3. Restart the application (setup wizard will appear)