
The company confirmed it was re-evaluating its four-year relationship with Dentsu Aegis Network in a statement to .
In 2014, Microsoft hired Interpublic to handle its advertising work and Dentsu Aegis Network to manage its global media account.
Media planning has been handled since then by a cross-discipline team from Dentsu Aegis agencies, led by Carat.
Dentsu Aegis Network declined to comment.
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