We were installing Microsoft Data Protection manager 2012 R2 for an customer they were using Exchange 2013 / SharePoint 2013 and Active directory. Everything was configured successfully even creating recovery point for protection Groups.
They issue that we got that the DPM started to showing all the Mailbox database as “ Replica is inconsistent”, Ran consistency check multiple times on DPM but problem was still there.
Exchange database shows backup has been taken correctly.
Did some research on internet and found various people had same problem. Fix was to install Visual C++ Redistributable for Visual Studio 2012 Update 3 on DPM 2012 R2 server.
Then we ran another consistency check and all the replicas back to OK.