Display Partial Invoice Number on Email & Printed Invoices, Omitting the Leading Zeros

1. Select Setup > Customize Forms
2. Select Invoices
3. Select the invoice type
4. Click Customize
5. Double-click in the *Invoice #* field to open the Format or Properties window
6. Click to right-justify the data in the field
7. Click the edge of the field to make its width smaller

As a result, only the right portion of the invoice number will be displayed; leading zeros will be truncated.

Also consider customizing the Transaction IDs for each transaction type to define a four character prefix and next number sequence for auto numbering.  Select Setup>Transaction IDs.