Error: Company file is locked by another client

Is the Web Connector failing with the below message?


Message: Update aborted. Company file is locked by another client COMPUTER_NAME


This is typically caused by AutoRun being set to run too frequently. In your Web Connector, either turn AutoRun off, or set it for a larger value. This error is caused by this value being set too low (aka 10 minutes), and the Web Connector not having enough time to finish the previous task before starting the next sync. We recommend 45 or 60 minutes+ for the AutoRun value.

Another cause here can be if the Web Connector was force quit while running. It's recommended to not force quite the Web Connector while it's running.


The QuickBooks Company file will usually automatically unlock itself within a few hours. Restarting the QuickBooks POS computer usually assists in forcing this to happen.

If, after a few hours, the QuickBooks company file is not unlocked (aka, the same error above is occurring), you'll need to contact our support to help unlock the QuickBooks company file (with instructions we've received from QuickBooks).


-POS SDKTest Application

-Unlock.xml file


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