Applicable methods to remove QuickBooks error 103 QuickBooks is a feature-rich accounting software that has assisted small and medium-sized businesses for many decades now. All their financial records are handled by QuickBooks, which provides detailed account reports, including the cash flow in the business. It helps the users track how the business is performing and the beneficial decisions that can be taken for the welfare of their business. This software can develop some unpredictable errors due to faults in software components of the computer, operating system, or QuickBooks itself. QuickBooks error 103 occurs while the user tries to connect with the bank. If you also confronted this error in your QuickBooks, then reading the blog further will help you to learn about the reasons it occurred and the ways to rectifythis error.