Can i link my email address book ?

Hello dave-gas1982,

Welcome to the Community.

Syncing Gmail contacts made it possible in QuickBooks. Let me show you how to do:

1. Click on the Plus icon and choose Invoice.
2. In the Customer name drop-down, choose Add new.
3. Click on Connect your Gmail account button. 
4. Log in your Gmail account.

For other email providers, you may want to check for a third party app that will sync email address to QuickBooks. Please go to https://apps.intuit.com and choose your region to view varieties of applications.

Let us know if you have more questions. Thanks!