RESTAPICLIENT Could not create SSL/TLS secure channel

Development Integration
1

Hi all

We try to use built-in application RESTAPICLIENT to call a REST API.
But it returns the following exception.

Seems it’s a mismatch of the security protocol.
Any ideas to fix it?
Thanks in advance.

=============================
CODE: ErrorWebServiceCall (#217)
SOURCE: WebServiceExecute
MESSAGE: Error while invoking the web method Send : Exception has been thrown by the target of an invocation. : System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.GetResponse()
at Advantys.Workflow.Applications.RestApiClient.RestApiClient.ReadWebResponse(WebRequest webRequest, ContextParameters context)
at Advantys.Workflow.Applications.RestApiClient.RestApiClient.SendWithContext(ContextParameters contextWorkflowGen, String applicationName)

2

Solved by add Windows Registry to set up tls12 protocol.

Execute below in powershell:
Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Wow6432Node\Microsoft.NetFramework\v4.0.30319’ -Name ‘SchUseStrongCrypto’ -Value ‘1’ -Type DWord

Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Microsoft.NetFramework\v4.0.30319’ -Name ‘SchUseStrongCrypto’ -Value ‘1’ -Type DWord

Suggest to add such prerequisite in the documentation if it’s not included.