Hey!
if im guessing correctly as to what you need there are multiple ways of doing this.
I need a bit of clarification:
Its REST not SOAP?
What method? POST?
Your payload is an xml container and within one of the tags is another complete xml instance (analagous to SOAP)? Is that correct?
The xml that is "contained"...is the whole instance where do you get that from?
The xml that is "contained", how many tags need parameterising?
The more info we havr the better. Example payloads would be very helpful too!
Cheers,
richie