Board of Directors, Shareowners, and Stakeholders
Walgreens Boots Alliance, Inc., Deerfield, Illinois

We have reviewed the following indicators presented in the 2016 Corporate Social Responsibility Report (the “specified indicators”) of Walgreens Boots Alliance, Inc. (the “Company”) for the fiscal year ended August 31, 2016:

  1. Total Company CO2e emissions by source
  2. Total Company CO2e emissions by Division
  3. Energy use by Division
  4. CO2e emissions from energy, by Division
  5. CO2e emissions from energy, by type
  6. CO2e emissions from product delivery, by Division
  7. CO2e emissions from business travel, by type
  8. Business travel - air (by length of haul)
  9. CO2e emissions from business travel, by Division
  10. CO2e emissions from business travel, per 1,000 employees, by Division and for the Company
  11. Waste by method of disposal
  12. Waste by Division 

  1. How the Company contributes – cash 
  2. How the Company contributes – non-cash 
  3. Areas impacted by the Company's contributions 
  4. The types of groups th Company contributes to 
  5. Contributions by Division 

  1. Employees by Division
  2. Employee retention 
  3. Employees by gender 
  4. Women employees by Division and in the Company 
The Company’s management is responsible for the specified indicators presented within the Corporate Social Responsibility Report.  

We conducted our review in accordance with attestation standards established by the American Institute of Certified Public Accountants. A review consists principally of applying analytical procedures, considering management assumptions, methods, and findings, and making inquiries of and evaluating responses from persons responsible for corporate sustainability and operational matters. It is substantially less in scope than an examination, the objective of which is the expression of an opinion on the specified indicators. Accordingly, we do not express such an opinion. A review of the specified indicators is not intended to provide assurance on the Company’s compliance with laws or regulations.

The preparation of specified indicators within the Corporate Social Responsibility Report requires management to establish the criteria, make determinations as to the relevancy of information to be included, and make estimates and assumptions that affect reported information. Measurement of certain amounts and sustainability metrics, some of which may be referred to as estimates, is subject to substantial inherent measurement uncertainty. Obtaining sufficient, appropriate review evidence to support our conclusion does not reduce the inherent uncertainty in the amounts and metrics. The selection by management of different but acceptable measurement methods, input data, or model assumptions, or a different point value within the range of reasonable values produced by the model, may have resulted in materially different amounts or metrics being reported.

Our review was limited to those indicators specified by management and such specified indicators may not necessarily reflect the overall sustainability profile of the Company.

Based on our review, nothing came to our attention that caused us to believe that the specified indicators are not presented, in all material respects, in conformity with the Walgreens Boots Alliance Corporate Social Responsibility Performance Data Basis of Preparation, which is available in the Corporate Responsibility area of the Company’s corporate website in the “About this report” section.

Stamford, CT

16 February 2017

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