The document summarizes a study by Forrester Consulting on the total economic impact of Microsoft Office 365 for enterprise customers. The study found that the composite organization experienced a 163% three-year ROI and $5.6 million in risk-adjusted net present value from adopting Office 365. Key benefits included cost savings from improved mobility, control and compliance, business intelligence, and enterprise social capabilities. The payback period for Office 365 implementation was estimated to be 7 months.