How to Diagnose and Fix QuickBooks Error H303?

QuickBooks desktop error h303 usually triggers when the user tries to switch QuickBooks from single-user mode to multi-user mode. The error pops up on the screen with a message, “This company file is on another computer, and QuickBooks needs some help connecting.” The QuickBooks error code H303 indicates something is blocking the multi-user connection between QuickBooks and the company file. To get detailed information on QuickBooks company file error H303, its causes and solutions, read the blog till the end.

If you need any technical assistance to resolve QuickBooks error H303, then call us on our toll-free number (1.800.579.9430) and talk to certified QuickBooks professionals

Causes behind QuickBooks error H303

Before proceeding to the solutions, take a look at the factors responsible for the error:

  • QuickBooks company file is damaged and corrupted.
  • Incorrect hosting configuration settings.
  • QuickBooks Database Server Manager is not running on the server computer.
  • Inappropriate firewall and security settings.

Let us walk you through the troubleshooting procedure given below.

Most Preferred Solutions to Tackle QuickBooks error H303

Given below are the two most effective troubleshooting solutions to resolve the error:

Solution 1. Stop Hosting Multi-User Access on workstations

The server system is the one that hosts the QuickBooks company file. So, you need to turn off the Host Multi-User Access option. Here’s how:

  • Open QuickBooks desktop.
  • Go to the File menu and select Utilities.
  • Select the Stop Hosting Multi-User Access option. If you didn’t find the option, go to another workstation, this workstation is not causing the problem.
  • Now, move to the server computer.
  • Select the Host Multi-User Access option.

If you are still getting error h303 in QuickBooks desktop, try the troubleshooting steps given in the next solution.

Solution 2. Open the company file from the new location

  • Move to the server computer.
  • Create a new folder.
  • Set up permissions to share the company file.
  • Copy the QuickBooks company file and paste it to the new folder you created.
  • Open QuickBooks and then open the company file from the new folder.

We hope the solutions mentioned in the blog help you fix QuickBooks error H303. If the issue continues, get in touch with the QuickBooks support team by calling us on our helpline number (1.800.579.9430). They will assist you with advanced troubleshooting for the same.

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