Venkat,
If you doing http post and invoking a service which receives EDI document this means IS will not store it anywhere instead the invoked service will process it further depends on your flow logic(explicitly store the document in a Database (using WmDB or JDBC Adapter services or write edistring to a file).Generally EDI document transports will be these gatways FTP,VAN(mailbox),EDIINT Module etc…
Another option is if you use TN component then route the EDI documents to tn:receive this will store in TN Database (any RDBMS),so that viewing and monitoring makes easier.(recommended)
There is a EDIINT module which will receive the EDI document from the Internet AS2 (http/https),go thru the documentation on this procedure this is some what complex and industry standard protocol.
HTH,
RMG.
#webMethods-General#webMethods-Architecture#webMethods#Integration-Server-and-ESB