I am trying to hit a remote web service and check if the service is working. To hit the service I am using SOAPUI client. The first time I tried, I got a 403/Forbidden respo
You need to configure soapui for client certificate authentication.
There are a number of ways to do this.
Have a look at the link below. It gives some basic setup steps to assist with soapui SoapUI Configure Client certificate authentication (soapui 3.6)