To connect with QuickBooks error support by telephone, dial 855-200-0590. This number connects you directly to a dedicated support team trained to handle various QuickBooks error issues. When calling, ensure you have your QuickBooks account details and a description of the error you're encountering to facilitate a faster resolution. The support team is equipped to provide guidance, troubleshooting, and solutions to address your concerns effectively. If you have difficulty reaching the support line or need additional help, consider visiting the QuickBooks support website for further resources and assistance options.