I’ve worked with Suitelet’s and RESTlets before and I have called RESTlets using TBA and I’m pretty sure I read somewhere that you can don’t have to pass authentication when calling a RESTlet from a Suitelet since NS will use the session already established. I am getting an error message: No Authorization header”. Any ideas?

Server scripts dont use session

You are probably thinking about calling from client script

i'm agree with michoel, try calling it in the client script. So in Suitelet > Client Script > Restlet :)

Thanks guys. I got it to work as recommended with the SL->CS->RS dance. On the design side it seems more efficient to just go directly to the RS from the SL without having to use the CS as a conduit.