Backend server error. Response Code:500, Message: Internal server
  • Updated on 18 Oct 2018
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Backend server error. Response Code:500, Message: Internal server

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The authentication schemes configured on the host ('Ntlm'), do not match those configured on the binding 'WebHttpBinding' (Negotiate).

If you get such an error:

image.png

There could be an issue with the providers for Windows Authentication for the BizTalk360 website in IIS. You can add “Negotiate”, then it might work:

image.png

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