The Data Hub logs warnings and errors to the Windows Event Log. (Note that this can be supplemented or replaced with other logging). For example, if a destination sends an error or offline response to the Dispatch Service, the particular response code will be logged as a warning, with details about how the message will be queued.
To access the PA Data Hub log:
Applications and Services Logs.
PA Data Hub.
By default, the log only retains the last 1028 KB of log messages. To configure the retention settings:
PA Data Hubentry in the left pane, and select