how to restart the workflow

Hi friends,

I have a requirement where in i am checking inside the workflow whehther the rfc destination is maintianed using a condition step and if it fails i have to exit processing completely and send a workitem to an administrator informing them of the issue and <b>Allow the possibility for the workflow to be restarted again once the table has been updated.</b>How to do allow the possibility of restarting the workflow.

rgds,