Unable to send Notification thru Activity Step

Hi,

The requirement is as follows:

A multiline element is passed to an activity step. If the multiline element has 3 entries, notification mails must be sent 3 times; once for each entry.

It works fine if I assign the Message recepient as 'Workflow Initiator' in the 'Notification' tab. However if I change it to 'Position' by specifically mentioning the position then the Workflow Log show 'error' and the Graphical Display shows 'Workflow system error' and hence no

notification is sent.

Thanks,

Namita