Error consuming webservice, content type “application/xop+xml” does not match expected type “text/xml”

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For anyone suffering from the same problem; I’ve found a solution for consuming the web service as a Service Reference (WCF). The BasicHttpBinding.MessageEncoding property needs setting to “Mtom”.

Here’s a snippet of the required config setting:

<configuration>
  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding messageEncoding="Mtom">          
        </binding>
      </basicHttpBinding>
    </bindings>
  </system.serviceModel>
</configuration>

Edit: If you are having the same issue with a custom binding please refer to the answer from @robmzd.

I still haven’t found a solution for consuming it as an old style Web Reference yet.

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