Bala,
Make sure the documentType is enabled and also see if any migration overwritten the doctypes section or could be your processing rule for sender/receiver/doctype is not working as expected and doctype is not recognized.
If this is working lastweek,then something might be changed in the TN environment or console.
Please elaborate what is ur current process and creation of your doctype (XML),rules etc…
HTH,
RMG
#Integration-Server-and-ESB#webMethods-General#webMethods#webMethods-Architecture