Contact management on Android is a bit more involved (or so it seems to me). I realize I'm a newbie at the OS (only had my M8 2 weeks), so I'm trying to understand how it handles all the contact info. At one point I had 4 contact databases on the M8. Google, iCloud version, AT&T version, and the phone's version.
Have gotten back to only having 2 contact databases now (Google and iCloud's), after rooting, installing SU, and S-OFF, as well as flashing the stock Google Play Edition ROM. I'm sure it wasn't necessary to do all that, but I like to play with the UI a lot. I'm understanding just a bit more about the OS now

But still reading/trying/learning a lot.
Originally, I was able to use the HTC process. But, there are also several apps that can help. I use this one:
https://forums.androidcentral.com/e?...token=ZIThqVjs
No affiliation or anything. Just a user of the app.
HTH.