A Quick And Easy Guide To Resolve QuickBooks Error H303
                     Practical Approaches to Fix 
QuickBooks Error H303
QuickBooks is a bookkeeping software that can execute multiple monetary tasks 
and record all the data securely, which is later analyzed to create financial 
reports. The data can be shared between multiple users with the use of a multi-
user network. But technical glitches can sometimes block this multi-user setup 
in the software. QuickBooks Error H303 emerges when the software fails to 
switch to multi-user mode to open or host a company file. If you also face this 
issue in your QuickBooks, continue reading the blog to understand the 
conditions that trigger this error and the methods you can use to rectify it.
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YOUR ASSISTANCE IN TROUBLESHOOTING QB-RELATED ISSUES.

Reasons
• This is a hosting error that develops due to the following reasons in 
QuickBooks-
• The workstations run in multi-user mode, trying to host the company file.
• The server computer is running in Single-user mode.
• QuickBooks faces difficulties establishing a multi-user network due to 
malfunction in the Database Server Manager.
Solutions
This QuickBooks hosting error can be fixed by applying the methods given 
below-
Solution 1- Stop every workstation in the system from using 
the multi-user mode
Only the server computer is permitted to host the company file in a QuickBooks 
multi-user mode setup. All the other workstations should use the single-user 
mode to run. You’ll encounter these error codes when one or more workstations 
try hosting the company file in multi-user mode. You won’t be able to open your 
company file in any system, and error codes will come up on the screen in return 
for your every attempt. To resolve this issue, you’ll have to fix the QuickBooks 
hosting settings on all the systems.
• Go to every workstation connected to the network individually and use the 
steps below-
• Open QuickBooks and tap the File menu.
• Select Utilities and click on Stop hosting multi-user Access.
• Close any opened company files.
• Approach your server computer and use the steps below-
• Launch QuickBooks and go to the File menu.
• Select Utilities from the options and click Host multi-user access.
• Close all the company files.
• After the hosting settings are fixed on all the workstations and the server 
computer.
• Reboot all the systems using the Windows Start button and open the company 
file in your server computer in multi-user mode.
If the error develops again while opening the company file, try the following 
method.
Solution 2- Run the QuickBooks Database Server Manager to 
scan the QuickBooks folder
• This issue can also develop if a file required for the multi-user network setup 
isn’t
• registered. You must use the Database Server Manager as given in the steps 
below-
• Run QuickBooks Database Server Manager and go to the Scan Folders tab.
• Select the folder containing your company file using Browse and click Start 
Scan.
• Let the DBSM finish and retry accessing your company file.
• The error will not interrupt you from opening the company file now.
Conclusion
This brings us to the completion of this blog describing the causes of 
QuickBooks Error H303 while switching to the multi-user mode or accessing a 
company file. We hope you applied the given solutions and your QuickBooks is 
free from errors now. If you still encounter any problems, consult a QB expert 
at 1-855-856-0042.