Satya,
Tell me are you submitting Canonical(IS Document)or EDI document to TN?
How are you submitting the document to TN?Actually using contenttype application/EDI should work fine.
There are various reasons of showing unknown,so check your TN processing rule and also the document that you are submitting to TN and match the sender/receiver id’s are sending correctly which has to match with your partnerprofile during document recognizition other wise TN will always use Default processing rule.Also make sure your processing rule is above the Defaul rule.
Also please elaborate on your process,so that it will easy for anyuser to respond.since you mentioned above that you are using canonical document,edi,contenttype/http bits of process only which is confusing.
HTH
RMG.
#webMethods#B2B-Integration#Integration-Server-and-ESB