In multi-user mode, QuickBooks Error H202 happens when the program has trouble connecting to the corporate file. Usually, improper hosting setups, firewall restrictions, or restricted server communication are the cause of this problem. Verifying hosting settings, modifying firewall permissions, and diagnosing network problems with QuickBooks File Doctor are all necessary steps in fixing it. The phone number for our QuickBooks Experts team is 1.855.738.2784.