David jasmine
New member
You must regularly update QuickBooks and the third-party application to prevent the QBWC1039 error from striking. Also, you can check for any damaged or corrupted company files to fix and ensure that your computer's antivirus and firewall settings are correct. Do not block the Web Connector or the third-party application's connection. Besides this, you must only operate trusted third-party applications with QuickBooks and confirm that they are not incompatible with your QuickBooks version