Are you getting the below error message when attempting to add our application to the Web Connector?
QBWC1048: QuickBooks Web Connector could not verify the web application server certificate. QBWC1051: The new application was not added
This means that QuickBooks is unable to verify a valid SSL on your website. There are several additional causes/resolutions for this:
- Ensure a fully valid SSL certificate is correctly installed on your site. SelfSigned certificates are not valid.
- Ensure your local and remote firewall/security plugins are not blocking the QuickBooks connection to your site.
- Ensure you don’t have any privacy/redirection plugins enabled on your site that might be blocking the QuickBooks connection.
- If you are running Windows 7/8, ensure the latest updates are installed to ensure compatibility with TLS 1.1+. This QuickBooks Readiness tool helps with this.