Error Message: un is not a numerical value (MySQL database / PHP error)

This error is displayed if you do not restart MySQL after changing the sql-mode setting (for example to disable the strict mode option).  Once you have restarted My SQL then you can then add your publisher account with the ‘un’ value.

NOTE:

If you enter a numerical value to avoid this message then that will work for this stage, but customer account creation will then fail, so make sure you disable strict mode (use the command SET GLOBAL SQL_MODE=”;) and then restart MySQL.