HTTPS error for Sync Scenario

Hi All,

Requirement : SOAP to Proxy Sync Scenario (we are not using SSL certificates)

I have created Async scenario and triggered message using link " https:// " with channel configuration HTTP Security Level : HTTP, it was working fine, but same configuration is not working with Sync scenario and getting error "com.sap.engine.interfaces.messaging.api.exception.MessagingException: com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.io.IOException: Communication over HTTPS. Unable to create a socket"

when i use HTTP Security Level: HTTPS Without Client Authentication for Sync scenario, getting below error "

java.security.AccessControlException: https scheme required

    at com.sap.aii.adapter.soap.web.SOAPHandler.checkHTTPSecuritylevel(SOAPHandler.java:826)"

Wondering why it is working with Async but not with Sync scenario

Regards,

Mani