There currently is no way to update the content of a flow step via our APIs. You can modify the content of the email with the Email APIs, but that will change the email as referenc...
Tokens aren't rendered in URLs since URLs are provided by the client. It would be impractical and not particularly useful for the server to render them and pass them back in the lo...
We currently don't provide APIs capable of providing new or updated program records. To get all programs, you would want to iteratively call Browse Programs while incrementing the ...
I'd suggest filing a support case here. I don't see anything wrong with the call and I can't reproduce the error with that same call to my own instance.