Both features are used for diff purposes…
Monitor uses WmPRT (Process Audit Log database) where you log the Process model steps/pipeline where anytime it allows resubmit the failed process.
TN resubmit (TransactionAnalysis) if you want to resend the persisted document which will trigger the processing rule (execute a service) or document delivery to the Trading Partner in the case of ProcessingStatus Errors or TP requests for re-transmission.
HTH,
RMG
#webMethods#B2B-Integration#Integration-Server-and-ESB