Awesome

Foggyline_Watchdog

Configurable Magento v1.x extension for logging user and/or customer actions (frontend and backend).

Extension is turned off by default. To configure it, go to System > Configuration > Advanced > System > Watchdog.

Once extension has been turned on / configured, you can see its result under System > Tools > Watchdog.

Extension has been developed and tested under Magento Community Edition ver. 1.9.0.1.