When calling an NTLM-authenticated WSDL with the Call Web Service node, users will receive the following:
The WSDL requires authentication. Please provide valid credentials (APNX-1-4045-006)
If performing a network capture, users will see a 401.
The Call Web Service node does not support NTLM v2 authentication. NTLM v2 authentication can be enforced by the server hosting the WSDL or the servers of the endpoints that the WSDL is referring to.
Disable NTLM v2 authentication on whichever servers are involved with the WSDL call. Steps on how to do this are as follows:
This article applies to all versions of Appian.
Last Reviewed: March 2017
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