I have a Business Service that reads a file from a folder and sends it as a string to a Business Process. In the business process, I need to add a string to the end of the file string that is coming into the Business Process. I am trying to do this in object script in studio and I am struggling to figure out how to add the string to the end of the other string. I am still new to studio and object script I have been reading up on the documentation and I am not sure what is the best way to accomplish this.