Finding the license and product number for QuickBooks Pro 2013 is essential for successful installation and reactivation. Depending on whether you currently have the software installed or are looking for original records, there are several reliable methods to retrieve this information. How to Find Product Details Within QuickBooks
The easiest way to find your details is directly within the program: The F2 Shortcut: Open QuickBooks and press the key on your keyboard. This opens the Product Information window, which displays your license and product number. The Registration File: quickbooks pro 2013 license and product number
As of this writing, QuickBooks Pro 2013 is a discontinued version. Intuit no longer supports it, and online features (payroll, banking, support) are deactivated. However, you can still use the desktop file for manual bookkeeping. Finding the license and product number for QuickBooks