you ahve to set up TPA for all document types used in TN.
In TN goto Agreements.

Create a TPA here where AgreementID is same as document type in TN. Sender and Receiver can be Unknown. then set IS DOCUMENT TYPE= wm.ip.rn.rec:UserParameters. Set values to this rec depending on whether it is buyer/seller

Confused about the last line, “Set the values to this rec depending on whether it is buyer/seller”

In the RN_UsersGuide 61 is says wrt Parameter Settings on TPA’s
PipInfo. Consists of information about the PIP process, such as the DTD, ActionCode, and so on. Do not edit PIP information unless you are implementing a customized PIP.

Does the mean we do not need to populate the wm.ip.rn.rec:UserParameters for conventional PIPS (3A4 etc)

I think what is meant by the docs is:

Do not add additional fields to the document type the TPA is based on unless you are implementing a customized PIP.

Regards

Thanks Mark.
I will look at the 3a4 sample PIPInfo to see a typical configuration for this document.