Craig Schrickker wrote:
Thanks Quentin and Benjinth
That helped - The error is telling me that the customer detail of (Name and Email) is not being passed into the call.
I'm confused because I can see the values in the debugger being passed. These two items are the only elements that make up the "to" object of the structure. Is there a different method of adding this in?

Hi,
Did you enable Full logging like Benjinth suggested? You should be able see the request JSON body being sent as well.
This can help to tell if the name and email are being sent as empty or if they are being sent but the error still reports that they are not passed (which may suggest a typo perhaps).