Send a Notification When ever a new entry is created in Z-Table

Dear All,

I have got a requirement to send a notification when ever a new entry is created in the Z-Table which contains some important information.

I have searched in SCN and found few links in which it say to create an Event '05' and in that call FM SWE_EVENT_CREATE, but my query is Do I need to create a new BO?

In the example which I found in other sites where its mentioned like

W_OBJTYPE = 'YH355_BO'.

W_OBJKEY = ZCUST_INFO-CUSTNO.

W_EVENT = 'SENDEMAIL'.

here OBJECTTYPE is a new BO or what.

Kindly help me in solving my requirement as am new to Workflow concepts.