# Exit Codes AzerothCore has 3 default exit codes that are called if you shutdown, restart or crash the server. ```cpp enum ShutdownExitCode { SHUTDOWN_EXIT_CODE = 0, ERROR_EXIT_CODE = 1, RESTART_EXIT_CODE = 2, }; ``` SHUTDOWN_EXIT_CODE is called when you use the commands **.server shutdown**, **.server idleshutdown**, **.server exit** or if the [m_serviceStatus == 0](https://github.com/azerothcore/azerothcore-wotlk/blob/a594bf5b290e5476c61bab29809a079e93c5daa2/src/server/worldserver/Main.cpp#L575-L581) for Windows. RESTART_EXIT_CODE is called when you use the commands **.server restart** and **.server idlerestart**. ERROR_EXIT_CODE is called when the server crashes. This can be due to due to guid/id/entry overflow, [Network.Threads](https://github.com/azerothcore/azerothcore-wotlk/blob/a594bf5b290e5476c61bab29809a079e93c5daa2/src/server/worldserver/worldserver.conf.dist#L2909-L2913) being <= 0 or if the server cannot initialize network. The best way to know where all the exit codes are called is by finding them in the source code. ## Commands ``` .server idleshutdown #delay [#exit_code] .server idlerestart #delay [#exit_code] .server shutdown #delay [#exit_code] .server restart #delay [#exit_code] ``` The **.server shutdown/restart**, **.server idleshutdown/restart** commands all have an argument for **[#exit_code]**. The default exit code for shutdown is always 0 and the default exit code for restart is always 2 if the argument is left blank. The argument can take a value between 0 - 125 which lets you output a custom exit code other than the defaults. ## Scripts including exit codes Having the Worldserver sending exit codes let's you create an external script that can act when it reads a specific exit code being displayed. For example it's possible to write a script to automatically restart if the Worldserver sends RESTART_EXIT_CODE. You can view [this](https://github.com/azerothcore/azerothcore-exitcode-script) batch script for Windows how exit codes can be used.