Part-appraisal process

Hi

I am trying to add a part-appraiser to the appraisal process. The flow will be:

1. Employee does self-evaluation

2. Part-appraiser adds feedback

3. Manager does final evaluation

It is a single appraisal form which goes from employee to part-appraiser to manager.

I have maintained the employee, manager and part-appraiser in the template. But the status flow is not working. If I go for the standard Employee and Manager process, I do not face any problem. If anyone of you has worked with part-appraiser and can help me, I will be grateful.

Thanks