Welcome to the Community, AJ786.
You've come to the right place for assistance. I'd be glad to point you in the right direction for more info regarding customer relationship management (CRM) in QuickBooks Desktop.
QuickBooks has teamed up with many third-party companies to provide apps that get a variety of jobs done. These apps integrate directly with your account so you're able to work in one platform seamlessly. I recommend checking out the Apps site to search for available CRM apps.
You're welcome to hang out here in the Community to see which CRM programs other users are currently using in their Desktop accounts. If you have any other questions in the meantime, I'll be here to help. Take care!