This may indicate the WebPurchasing or WebInvoicing service traffic for your domain is being routed to an incorrect server.

For assistance on troubleshooting this error message, refer to this Microsoft Developer Network forum Post: The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (application/soap+xml; charset=utf-8).​

Note: We provide links to third-party websites in an effort to help you resolve your issue. We are not responsible for the information on third-party websites, and we cannot assist with implementing resolutions from these websites.  Please contact the appropriate software vendor or IT professional for assistance with this process or issue, which is beyond Blackbaud's scope of support.