Why & How To Fix QuickBooks Multi User Mode Not Working Error QuickBooks Desktop falls under the foremost exemplary accounting applications present worldwide. The features and tools of QuickBooks Desktop are highly advanced, which lets business ventures manage their day-to-day financial transactions efficiently. However, no matter how good QuickBooks Desktop is in its work, it’s not free from errors and bugs. One such error is that the Quickbooks Multi-User Mode Not Working error, which many users encounter while turning on the multi-user mode in their QuickBooks Desktop. during this article, we’ll explain the explanations behind such a QuickBooks multi-user mode error and therefore the troubleshooting ways to repair it.