Diff Between SOP and Personal Achievements / Contributions Statement

Statement of Purpose

Brief statement outlining your reasons for undertaking a graduate program, your particular area of specialization within the major field, your past academic work, and your plans for future occupation or profession.

Personal Achievements / Contributions Statement

Describes any aspects of your personal background, accomplishments, or achievements that you feel are important in evaluating your application for graduate study. This may include any economic challenges you may have experienced in achieving higher education or any unusual or varied life experiences.

Ref: University of California Santa Barbara Website