Scheduling custom BDC report as a job....

Hi,

I want to generate a background Job for a custom BDC ABAP report.

I am going to transaction SM36, entering name of Job -> Job class as 'C' -> enter.

But after I provide name of the program, it also has a field called variant. What do I enter there ?

Is it that I need to create some varaiant for my BDC report ? How do I do that ?

Also how do I schedule this job which I created ?

Regards.