For XML document , when you submit a document to TN , it looks for the appropriate matching document type . If not found any it would mark the document type name and hence sender & receiver as unknown .
Looks like your document is not getting recognised . So , you need to create the document type of XML , mention identifying parameters (root-tag or identifying fields) and then in the Extraction tab mention the senderid and the receiverid with proper XQL and also type-name of the ID (DUNS , USER-Defined) . Remember these you have to have proper enterprise and partner configured with these ID’s .
#Integration-Server-and-ESB#webMethods#B2B-Integration