Here is a BR that I think will do the job.
Condition: current.source_table == 'sc_req_item' && current.sysapproval.opened_by == current.approver
Script:
(function executeRule(current, previous /*null when async*/) {
// Add your code here
current.approver = current.approver.manager;
current.comments = 'Approver is also Requester - Moved to Manager';
})(current, previous);
It was modified from a BR that I've used to auto-approved if Requester is also Approver. I haven't tested it.
Regards,
Niklas
