As Google Upgrades Google Maps Business Listings, Conflicts Happen Including Duplicate Listing Issues

Google has been automatically upgrading Google Place listings from the old system to the new Google Places dashboard. With this upgrade, there may be conflicts that prevents the upgrade from completing. The latest conflict is that there are duplicate listing issues and Google needs you to step in, fix the issue and then complete the upgrade process.

Source:http://searchengineland.com/google-upgrades-google-maps-business-listings-conflicts-happen-including-duplicate-listing-issues-185971