SyncBooks uses monthly-resetting invoice numbers that are unique per organization. Each org starts fresh from 0001 every month.

Format

• Standard invoices: {PREFIX}-{MM}-{####} → e.g., INV-06-0001
• POS invoices: {PREFIX}-POS-{MM}-{####} → e.g., INV-POS-06-0001
• Numbers reset to 0001 at the start of each month
• Each organization has completely independent numbering

Customizing

1. Go to Settings → Company → Invoice Settings
2. Set your Invoice Prefix (e.g., INV, SB, ACME)
3. Choose a Number Format — supports {PREFIX}, {YYYY}, {MM}, {####}
4. Save

How It Works

The system counts existing invoices matching the same prefix + month pattern for your organization, then assigns the next number. If a collision occurs (rare, during concurrent sales), it automatically retries with the next available number.