13 December 2019

D365FO: workflow editor and the fix

After installing recent Windows updates, Workflow editor could not be open on some machines. The following error appears:

"An error occurred while making the HTTP request to http://xxxxxxxx.dynamics.com/soap/services/WorkflowService/. This could be due to the fact that the server certificate is not configured properly with HTTP.SYS in HTTPS case. This could also be caused by a mismatch of the security binding between the client and the server"

The fix provided by Microsoft support. Run the following PowerShell script on Client machine:


Set-ItemProperty HKLM:\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 -Name SchUseStrongCrypto -Value 1 -Type dword -Force -Confirm:$false
Set-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319 -Name SchUseStrongCrypto -Value 1 -Type dword -Force -Confirm:$false

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