Accessing the Customer Center in QuickBooks is straightforward. First, open QuickBooks and navigate to the top menu. Click on Customers, then select Customer Center. This will bring up a window displaying all your customer information, including contact details, balances, and transaction histories. The Customer Center is your go-to hub for managing customer relationships, invoicing, and tracking payments. If you encounter any issues, QuickBooks support is available at 1-855-200-0590 or 1-855-200-0565 for assistance.