How do I merge/stop duplicate contacts when I create a message?

A

AC Question

When I create a new message and type in the persons name I notice there are two entries. I understand this is because of whatsapp. In my contacts I have already set it to show contacts only on sim so duplicate entries are no longer showing there. How do I stop this happening on my messaging app?
 

Cappycue

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Mar 19, 2016
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I guess nobody knows the answer to this. I just got a new G7 and the contacts are so completely jam full of duplicates that it is becoming unusable already. I have searched every day for the past four, trying to find an answer to why my smart phone is being so dumb and nobody seems to have the answer although the problem seems to have persisted through all the versions of Android.

I'd welcome a button that says "Don't duplicate any of the contacts already here. If there is a NEW contact sync it. If there is CHANGED or ADDITIONAL information for an EXISTING contact, combine the two." but I guess that isn't in our future.