An Open Letter to Customers from Brian Krzanich, CDK Global HOFFMAN ESTATES, Ill.--(BUSINESS WIRE)--The following is an open letter to customers from Brian Krzanich, CDK Global: February 8, 2021 To Our Customers: Just over a month ago, the world breathed a collective sigh of relief as we turned the corner into a brand-new year. A fresh start brings a great deal of optimism, yet there are still lingering challenges and new ones that will emerge in 2021. While there is much we wish to forget about 2020, we also learned a great deal about ourselves and how