✓ Yes, you need to fill the self-survey. One of the key elements in the individual report is the “Self Score”. Eg: The report has a gap analysis section that compares your self scores to the scores provided by others. This section can only be generated when the self-survey is filled.
A 360 or Manager Effectiveness Survey enables you to see how you perceive yourself vs how others perceive you, and hence filling the self-survey is suggested.