Hi @ddorian43
We are wondering why this isn’t working in your case. In practice, having smart substitution turned off and enclosing the value with double quotes should work. Here’s a demonstration with one postman-echo API. Can you please check the video and verify if you are doing the same?
Yes, I was doing the same.
I even tried it with postman-echo.com/post like you did in the video.
I actually discarded the changes and made the change again and this time it worked.