Echo Message To Log

This module is extremely simple and just echos all Drupal error and warning messages to the Drupal log.

If you are trying to diagnose hard-to-reproduce user issues that include them seeing notifications, this module may help with doing that. You can also consider the logging_alerts module so that you receive an email when something is added to the log. The masquerade module is highly useful too of course, but sometimes user issues are hard to reproduce.