The document provides an overview of Partner Success Services (PSS) which was created by Salesforce to help Salesforce Partners implement and maintain Marketing Cloud products for customers. PSS can be delivered through packages of specific projects and deliverables or through time and materials engagements. The engagement framework outlines different phases of a project and whether they are led by Salesforce, the partner, or jointly. Partners must meet certain prerequisites like having a PSA, appropriate training, and staffing. PSS packages are also described that focus on areas like project management, solution validation, requirements gathering, and deliverability. Global projects require using the appropriate rate cards and involving regional delivery leaders.