QuickBooks Integration by Qwickbridge Sync Online Desktop Custom Qwickbridge Sync connects QuickBooks Online and Desktop with business apps through custom integrations, reducing manual work and improving data accuracy. Connect your business application with QuickBooks through a secure integration. Qwickbridge understands your platform and prepares the connection for the required accounting workflow. Your customers, products, invoices, payments, taxes, expenses, and other records are mapped to the right QuickBooks fields, helping prevent duplicate or misplaced data.