Workflow configuration error in Dynamics Ax: 401 Unauthorized

If you are getting an error after installing Dynamics AX Workflow: “401 Unauthorized” after running Workflow infrastructure configuration wizard (Dynamics AX –> Administration –> Setup) at the first time installation of Dynamics Ax then you should go through the following steps…. It is mainly happening when database, AOS, Application and workflow servers are individual (especially workflow & AOS and Database server)

1. Check AOS Service is running under an active domain user (domain\username)
2. Workflow website and workflow application pool are having the same .NET Business Connector user name Identity (and of course, this should be an active domain user)
3. You added the workflow website (http://servername:portnumber/DynamicsAXWorkflow50 for example) to the trusted sites in Internet Options of AOS server
4. Run the following on the Workflow server:

• After checking above points and then perform the following steps

Ø       Start a command prompt.

Ø       Locate and then change to the directory that contains the Adsutil.vbs file. (By default, this directory is C:\Inetpub\Adminscripts.)

Ø       Type the following command, and then press ENTER:

                          cscript adsutil.vbs set w3svc/NTAuthenticationProviders “NTLM”

     Ø To verify that the NtAuthenticationProviders metabase property is set to NTLM, type the following command, and then press ENTER:

                  cscript adsutil.vbs get w3svc/NTAuthenticationProviders

The output:

NTAuthenticationProviders       : (STRING) "NTLM"

 After completing above procedure successfully then please take a restart of Ax and IIS service and then workflow infrastructure configuration wizard will work fine.